Internet server access control and monitoring systems

Information

  • Patent Grant
  • 9900305
  • Patent Number
    9,900,305
  • Date Filed
    Tuesday, December 13, 2005
    18 years ago
  • Date Issued
    Tuesday, February 20, 2018
    6 years ago
Abstract
This invention relates to methods for controlling and monitoring access to network servers. In particular, the process described in the invention includes client-server sessions over the Internet. In this environment, when the user attempts to access an access-controlled file, the server subjects the request to a secondary server which determines whether the client has an authorization or valid account. Upon such verification, the user is provided with a session identification which allows the user to access to the requested file as well as any other files within the present protection domain.
Description
BACKGROUND TO THE INVENTION

The Internet, which started in the late 1960s, is a vast computer network consisting of many smaller networks that span the entire globe. The Internet has grown exponentially, and millions of users ranging from individuals to corporations now use permanent and dial-up connections to use the Internet on a daily basis worldwide. The computers or networks of computers connected within the Internet, known as “hosts”, allow public access to databases featuring information in nearly every field of expertise and are supported by entities ranging from universities and government to many commercial organizations.


The information on the Internet is made available to the public through “servers”. A server is a system running on an Internet host for making available files or documents contained within that host. Such files are typically stored on magnetic storage devices, such as tape drives or fixed disks, local to the host. An Internet server may distribute information to any computer that requests the files on a host. The computer making such a request is known as the “client”, which may be an Internet-connected workstation, bulletin board system or home personal computer (PC).


TCP/IP (Transmission Control Protocol/Internet Protocol) is one networking protocol that permits full use of the Internet. All computers on a TCP/IP network need unique ID codes. Therefore, each computer or host on the Internet is identified by a unique number code, known as the IP (Internet Protocol) number or address, and corresponding network and computer names. In the past, an Internet user gained access to its resources only by identifying the host computer and a path through directories within the host's storage to locate a requested file. Although various navigating tools have helped users to search resources on the Internet without knowing specific host addresses, these tools still require a substantial technical knowledge of the Internet.


The World-Wide Web (Web) is a method of accessing information on the Internet which allows a user to navigate the Internet resources intuitively, without IP addresses or other technical knowledge. The Web dispenses with command-line utilities which typically require a user to transmit sets of commands to communicate with an Internet server. Instead, the Web is made up of hundreds of thousands of interconnected “pages”, or documents, which can be displayed on a computer monitor. The Web pages are provided by hosts running special servers. Software which runs these Web servers is relatively simple and is available on a wide range of computer platforms including PC's. Equally available is a form of client software, known as a Web “browser”, which is used to display Web pages as well as traditional non-Web files on the client system. Today, the Internet hosts which provide Web servers are increasing at a rate of more than 300 per month, en route to becoming the preferred method of Internet communication.


Created in 1991, the Web is based on the concept of “hypertext” and a transfer method known as “HTTP” (Hypertext Transfer Protocol). HTTP is designed to run primarily over TCP/IP and uses the standard Internet setup, where a server issues the data and a client displays or processes it. One format for information transfer is to create documents using Hypertext Markup Language (HTML). HTML pages are made up of standard text as well as formatting codes which indicate how the page should be displayed. The Web client, a browser, reads these codes in order to display the page. The hypertext conventions and related functions of the world wide web are described in the appendices of U.S. patent application Ser. No. 08/328,133, filed on Oct. 24, 1994, by Payne et al. which is incorporated herein by reference.


Each Web page may contain pictures and sounds in addition to text. Hidden behind certain text, pictures or sounds are connections, known as “hypertext links” (“links”), to other pages within the same server or even on other computers within the Internet. For example, links may be visually displayed as words or phrases that may be underlined or displayed in a second color. Each link is directed to a web page by using a special name called a URL (Uniform Resource Locator)—URLs enable a Web browser to go directly to any file held on any Web server. A user may also specify a known URL by writing it directly into the command line on a Web page to jump to another Web page.


The URL naming system consists of three parts: the transfer format, the host name of the machine that holds the file, and the path to the file. An example of a URL may be: http://www.college.Univ.edu/Adir/Bdir/Cdir/page.html, where “http” represents the transfer protocol; a colon and two forward slashes (://) are used to separate the transfer format from the host name; “www.college.univ.edu” is the host name in which “www” denotes that the file being requested is a Web page; “/Adir/Ddir/Cdir” is a set of directory names in a tree structure, or a path, on the host machine; and “page.html” is the file name with an indication that the file is written in HTML.


The Internet maintains an open structure in which exchanges of information are made cost-free without restriction. The free access format inherent to the Internet, however, presents difficulties for those information providers requiring control over their Internet servers. Consider for example, a research organization that may want to make certain technical information available on its Internet server to a large group of colleagues around the globe, but the information must be kept confidential. Without means for identifying each client, the organization would not be able to provide information on the network on a confidential or preferential basis. In another situation, a company may want to provide highly specific service tips over its Internet server only to customers having service contracts or accounts.


Access control by an Internet server is difficult for at least two reasons. First, when a client sends a request for a file on a remote Internet server, that message is routed or relayed by a web of computers connected through the Internet until it reaches its destination host. The client does not necessarily know how its message reaches the server. At the same time, the server makes responses without ever knowing exactly who the client is or what its IP address is. While the server may be programmed to trace its clients, the task of tracing is often difficult, if not impossible. Secondly, to prevent unwanted intrusion into private local area networks (LAN), system administrators implement various data-flow control mechanisms, such as the Internet “firewalls”, within their networks. An Internet firewall allows a user to reach the Internet anonymously while preventing intruders of the outside world from accessing the user's LAN.


SUMMARY OF THE INVENTION

The present invention relates to methods of processing service requests from a client to a server through a network. In particular the present invention is applicable to processing client requests in an HTTP (Hypertext Transfer Protocol) environment, such as the World-Wide Web (Web). One aspect of the invention involves forwarding a service request from the client to the server and appending a session identification (SID) to the request and to subsequent service requests from the client to the server within a session of requests. In a preferred embodiment, the present method involves returning the SID from the server to the client upon an initial service request made by the client. A valid SID may include an authorization identifier to allow a user to access controlled files.


In a preferred embodiment, a client request is made with a Uniform Resource Locator (URL) from a Web browser. Where a client request is directed to a controlled file without an SID, the Internet server subjects the client to an authorization routine prior to issuing the SID, the SID being protected from forgery. A content server initiates the authorization routine by redirecting the client's request to an authentication server which may be at a different host. Upon receiving a redirected request, the authentication server returns a response to interrogate the client and then issues an SID to a qualified client. For a new client, the authentication server may open a new account and issue an SID thereafter. A valid SID typically comprises a user identifier, an accessible domain, a key identifier, an expiration time such as date, the IP address of the user computer, and an unforgeable digital signature such as a cryptographic hash of all of the other items in the SID encrypted with a secret key. The authentication server then forwards a new request consisting of the original URL appended by the SID to the client in a REDIRECT. The modified request formed by a new URL is automatically forwarded by the client browser to the content server.


When the content server receives a URL request accompanied by an SID, it logs the URL with the SID and the user IF address in a transaction log and proceeds to validate the SID. When the SID is so validated, the content server sends the requested document for display by the client's Web browser.


In the preferred embodiment, a valid SID allows the client to access all controlled files within a protection domain without requiring further authorization. A protection domain is defined by the service provider and is a collection of controlled files of common protection within one or more servers.


When a client accesses a controlled Web page with a valid SID, the user viewing the page may want to traverse a link to view another Web page. There are several possibilities. The user may traverse a link to another page in the same path. This is called a “relative link”. A relative link may be made either within the same domain or to a different domain. The browser on the client computer executes a relative link by rewriting the current URL to replace the old controlled page name with a new one. The new URL retains all portions of the old, including the SID, except for the new page name. If the relative link points to a page in the same protection domain, the SID remains valid, and the request is honored. However, if the relative link points to a controlled page in a different protection domain, the SID is no longer valid, and the client is automatically redirected to forward the rewritten URL to the authentication server to update the SID. The updated or new SID provides access to the new domain if the user is qualified.


The user may also elect to traverse a link to a document in a different path. This is called an “absolute link”. In generating a new absolute link, the SID is overwritten by the browser. In the preferred embodiment, the content server, in each serving of a controlled Web page within the domain, filters the page to include the current SID in each absolute URL on the page. Hence, when the user elects to traverse an absolute link, the browser is facilitated with an authenticated URL which is directed with its SID to a page in a different path. In another embodiment, the content server may forego the filtering procedure as above-described and redirect an absolute URL to the authentication server for an update.


An absolute link may also be directed to a controlled file in a different domain. Again, such a request is redirected to the authentication server for processing of a new SID. An absolute link directed to an uncontrolled file is accorded an immediate access.


In another embodiment, a server access control may be maintained by programming the client browser to store an SID or a similar tag for use in each URL call to that particular server. This embodiment, however, requires a special browser which can handle such communications and was generally not suitable for early browser formats common to the Web. However, it may now be implemented in cookie compatible browsers.


Another aspect of the invention is to monitor the frequency and duration of access to various pages both controlled and uncontrolled. A transaction log within a content server keeps a history of each client access to a page including the link sequence through which the page was accessed. Additionally, the content server may count the client requests exclusive of repeated requests from a common client. Such records provide important marketing feedback including user demand, access pattern, and relationships between customer demographics and accessed pages and access patterns.


The above and other features of the invention including various novel details of construction and combinations of parts will now be more particularly described with reference to the accompanying drawings and pointed out in the claims. It will be understood that the particular devices and methods embodying the invention are shown by way of illustration only and not as limitations of the invention. The principles and features of this invention may be employed in varied and numerous embodiments without departing from the scope of the invention.





BRIEF DESCRIPTION OF THE DRAWINGS


FIG. 1 is a diagram illustrating the Internet operation.



FIG. 2A is a flowchart describing the preferred method of Internet server access control and monitoring.



FIG. 2B is a related flowchart describing the details of the authentication process.



FIG. 3 illustrates an example of a client-server exchange session involving the access control and monitoring method of the present invention.



FIG. 4 is an example of a World Wide Web page.



FIG. 5 is an example of an authorization form page.



FIG. 6 is a diagram describing the details of the translation of telephone numbers to URL5.





DETAILED DESCRIPTION OF THE INVENTION

Referring now to the drawings, FIG. 1 is a graphical illustration of the Internet. The Internet 10 is a network of millions of interconnected computers 12 including systems owned by Internet providers 16 and information systems (BBS) 20 such as Compuserve or America Online. Individual or corporate users may establish connections to the Internet in several ways. A user on a home PC 14 may purchase an account through the Internet provider 16. Using a modem 22, the PC user can dial up the Internet provider to connect to a high speed modem 24 which, in turn, provides a full service connection to the Internet. A user 18 may also make a somewhat limited connection to the Internet through a BBS 20 that provides an Internet gateway connection to its customers.



FIG. 2A is a flowchart detailing the preferred process of the present invention and FIG. 4 illustrates a sample Web page displayed at a client by a browser. The page includes text 404 which includes underlined link text 412. The title bar 408 and URL bar 402 display the title and URL of the current web page, respectively. As shown in FIG. 4, the title of the page is “Content Home Page” and the corresponding URL is “http://content.com/homepage”. When a cursor 414 is positioned over link text 412b, the page which would be retrieved by clicking a mouse is typically identified in a status bar 406 which shows the URL for that link. In this example the status bar 406 shows that the URL for the pointed link 412b is directed to a page called “advertisement” in a commercial content server called “content”. By clicking on the link text, the user causes the browser to generate a URL GET request at 100 in FIG. 2A. The browser forwards the request to a content server 120, which processes the request by first determining whether the requested page is a controlled document 102. If the request is directed to an uncontrolled page, as in “advertisement” page in this example, the content server records the URL and the IF address, to the extent it is available, in the transaction log 114. The content server then sends the requested page to the browser 116 for display on the user computer 117.


If the request is directed to a controlled page, the content server determines whether the URL contains an SID 102. For example, a URL may be directed to a controlled page name “report”, such as “http://content.com/report”, that requires an SID. If no SID is present, as in this example, the content server sends a “REDIRECT” response 122 to the browser 100 to redirect the user's initial request to an authentication server 200 to obtain a valid SID. The details of the authentication process are described in FIG. 2B and will be discussed later, but the result of the process is an SID provided from the authentication server to the client. In the above example, a modified URL appended with an SID may be: “http://content.com/{SID]/report”. The preferred SID is a sixteen character ASCII string that encodes 96 bits of SID data, 6 bits per character. It contains a 32-bit digital signature, a 16-bit expiration date with a granularity of one hour, a 2-bit key identifier used for key management, an 8-bit domain comprising a set of information files to which the current SID authorizes access, and a 22-bit user identifier. The remaining bits are reserved for expansion. The digital signature is a cryptographic hash of the remaining items in the SID and the authorized IF address which are encrypted with a secret key which is shared by the authentication and content servers.


If the initial GET URL contains a SID, the content server determines whether the request is directed to a page within the current domain 106. If the request having a SID is directed to a controlled page of a different domain, the SID is no longer valid and, again, the user is redirected to the authentication server 122.


If the request is for a controlled page within the current domain, the content server proceeds to log the request URL, tagged with SID, and the user IP address in the transaction log 108. The content server then validates the SID 110. Such validation includes the following list of checks: (1) the SID's digital signature is compared against the digital signature computed from the remaining items in the SID and the user IF address using the secret key shared by the authentication and content servers; (2) the domain field of the SID is checked to verify that it is within the domain authorized; and (3) the EXP field of the SID is checked to verify that it is later than the current time,


If the validation passes, the content server searches the page to be forwarded for any absolute URL links contained therein 112, that is, any links directed to controlled documents in different content servers. The content server augments each absolute URL with the current SID to facilitate authenticated accesses across multiple content servers. The requested page as processed is then transmitted to the client browser for display 117. The user viewing the requested Web page may elect to traverse any link on that page to trigger the entire sequence again 100.



FIG. 2B describes the details of the authentication process. The content server may redirect the client to an authentication server. The REDIRECT URL might be: “http://auth.com/authenticate?domain=[domain]&URL=http://content.com/report”. That URL requests authentication and specifies the domain and the initial URL. In response to the REDIRECT, the client browser automatically sends a GET request with the provided URL.


Whenever the content server redirects the client to the authentication server 200, the authentication server initiates the authorization process by validating that it is for an approved content server and determining the level of authentication required for the access requested 210. Depending on this level, the server may challenge the user 212 for credentials. If the request is for a low level document, the authentication may issue an appropriate SID immediately 228 and forego the credential check procedures. If the document requires credentials, the authentication server sends a “CHALLENGE” response which causes the client browser to prompt the user for credentials 214. A preferred credential query typically consists of a request for user name and password. If the user is unable to provide a password, the access is denied. The browser forms an authorization header 300 from the information provided, and resends a GET request to the authentication server using the last URL along with an authorization header. For example, a URL of such a GET request may be: “http://auth.com/authenticate?domain=[domain]&URL=http://content.com/report and the authorization header may be: “AUTHORIZE: [authorization]”.


Upon receiving the GET request, the authentication server queries an account database 216 to determine whether the user is authorized 218 to access the requested document. A preferred account database may contain a user profile which includes information for identifying purposes, such as client IF address and password, as well as user demographic information, such as user age, home address, hobby, or occupation, for later use by the content server. If the user is authorized, an SID is generated 228 as previously described. If the user is not cleared for authorization, the authentication server checks to see if the user qualifies for a new account 220. If the user is not qualified to open a new account, a page denying access 222 is transmitted to the client browser 100. If the user is qualified, the new user is sent a form page such as illustrated in FIG. 5 to initiate a real-time on-line registration 224. The form may, for example, require personal information and credit references from the user. The browser is able to transmit the data entered by the user in the blanks 502 as a “POST” message to the authentication server. A POST message causes form contents to be sent to the server in a data body other than as part of the URL. If the registration form filled out by the new user is valid 226, an appropriate SID is generated 228. If the registration is not valid, access is again denied 222.


An SID for an authorized user is appended (“tagged”) 230 to the original URL directed to a controlled page on the content server. The authentication server then transmits a REDIRECT response 232 based on the tagged URL to the client browser 100. The modified URL, such as “http://content.com/[SID]/report” is automatically forwarded to the content server 120.



FIG. 3, illustrates a typical client-server exchange involving the access control and monitoring method of the present invention. In Step 1, the client 50 running a browser transmits a GET request through a network for an uncontrolled page (UCP) . For example, the user may request an advertisement page by transmitting a URL “http://content .com/advertisement”, where “content.com” is the server name and “advertisement” is the uncontrolled page name. In Step 2, the content server 52 processes the GET request and transmits the requested page, “advertisement”. The content server also logs the GET request in the transaction database 56 by recording the URL, the client IP address, and the current time.


In Step 3, the user on the client machine may elect to traverse a link in the advertisement page directed to a controlled page (CP). For example, the advertisement page may contain a link to a controlled page called “report”. Selecting this link causes the client browser 50 to forward a GET request through a URL which is associated with the report file “http://content.com/report”. The content server 52 determines that the request is to a controlled page and that the URL does not contain an SID. In Step 4, the content server transmits a REDIRECT response to the client, and, in Step 5, the browser automatically sends the REDIRECT URL to the authentication server 54. The REDIRECT URL sent to the authentication server may contain the following string: “http://auth.com/authenticate?domain=[domain]&URL=http://content.com/report”.


The authentication server processes the REDIRECT and determines whether user credentials (CRED) are needed for authorization. In Step 6, the authentication server transmits a “CHALLENGE” response to the client. As previously described, typical credentials consist of user name and password. An authorization header based on the credential information is then forwarded by the client browser to the authentication server. For example, a GET URL having such an authorization header is: “http://autho.com/authenticate?domain=[domain]&URL=http://content.com/report and the authorization header may be: “AUTHORIZE: [authorization]”. The authentication server processes the GET request by checking the Account Database 58. If a valid account exists for the user, an SID is issued which authorizes access to the controlled page “report” and all the other pages within the domain.


As previously described, the preferred SID comprises a compact ASCII string that encodes a user identifier, the current domain, a key identifier, an expiration time, the client IF address, and an unforgeable digital signature. In Step 8, the authentication server redirects the client to the tagged URL, “http://content.com/[SID]/report”, to the client. In Step 9, the tagged URL is automatically forwarded by the browser as a GET request to the content server. The content server logs the GET request in the Transaction database 56 by recording the tagged URL, the client IF address, and the current time. In Step 10, the content server, upon validating the SID, transmits the requested controlled page “report” for display on the client browser.


According to one aspect of the present invention, the content server periodically evaluates the record contained in the transaction log 56 to determine the frequency and duration of accesses to the associated content server. The server counts requests to particular pages exclusive of repeated requests from a common client in order to determine the merits of the information on different pages for ratings purposes. By excluding repeated calls, the system avoids distortions by users attempting to “stuff the ballot box.”


In one embodiment, the time intervals between repeated requests by a common client are measured to exclude those requests falling within a defined period of time.


Additionally, the server may, at any given time, track access history within a client-server session. Such a history profile informs the service provider about link transversal frequencies and link paths followed by users. This profile is produced by filtering transaction logs from one or more servers to select only transactions involving a particular user ID (UID). Two subsequent entries, A and B, corresponding to requests from a given user in these logs represent a link traversal from document A to document B made by the user in question. This information may be used to identify the most popular links to a specific page and to suggest where to insert new links to provide more direct access. In another embodiment, the access history is evaluated to determine traversed links leading to a purchase of a product made within commercial pages. This information may be used, for example, to charge for advertising based on the number of link traversals from an advertising page to a product page or based on the count of purchases resulting from a path including the advertisement. In this embodiment, the server can gauge the effectiveness of advertising by measuring the number of sales that resulted from a particular page, link, or path of links. The system can be configured to charge the merchant for an advertising page based on the number of sales that resulted from that page.


According to another aspect of the present invention, a secondary server, such as the authentication server 200 in FIG. 2B, may access a prearranged user profile from the account database 216 and include information based on such a profile in the user identifier field of the SID. In a preferred embodiment, the content server may use such an SID to customize user requested pages to include personalized content based on the user identifier field of the SID.


In another aspect of the invention, the user may gain access to domain of servers containing journals or publications through a subscription. In such a situation, the user may purchase the subscription in advance to gain access to on-line documents through the Internet. The user gains access to a subscribed document over the Internet through the authorization procedure as described above where an authorization indicator is preferably embedded in a session identifier. In another embodiment, rather than relying on a prepaid subscription, a user may be charged and billed each time he or she accesses a particular document through the Internet. In that case, authorization may not be required so long as the user is fully identified in order to be charged for the service. The user identification is most appropriately embedded in the session identifier described above.


In another aspect of the invention, facilities are provided to allow users to utilize conventional telephone numbers or other identifiers to access merchant services. These merchant services can optionally be protected using SID5. In a preferred embodiment, as shown in FIG. 6, a Web browser client 601 provides a “dial” command to accept a telephone number from a user, as by clicking on a “dial” icon and inputting the telephone number through the keyboard. The browser then constructs a URL of the form “http://directory.net/NUMBER”, where NUMBER is the telephone number or other identifier specified by the user, The browser then performs a GET of the document specified by this URL, and contacts directory server 602, sending the NUMBER requested in Message 1.


In another embodiment, implemented with a conventional browser, client 601 uses a form page provided by directory server 601 that prompts for a telephone number or other identifier in place of a “dial” command, and Message 1 is a POST message to a URL specified by this form page.


Once NUMBER is received by directory server 601, the directory server uses database 604 to translate the NUMBER to a target URL that describes the merchant server and document that implements the service corresponding to NUMBER. This translation can ignore the punctuation of the number, therefore embedded parenthesis or dashes are not significant.


In another embodiment an identifier other than a number may be provided. For example, a user may enter a company name or product name without exact spelling. In such a case a “soundex” or other phonetic mapping can be used to permit words that sound alike to map to the same target URL. Multiple identifiers can also be used, such as a telephone number in conjunction with a product name or extension.


In Message 2, Directory server 602 sends a REDIRECT to client 601, specifying the target URL for NUMBER as computed from database 604. The client browser 601 then automatically sends Message 3 to GET the contents of this URL. Merchant server 603 returns this information in Message 4. The server 602 might have returned a Web page to the client to provide an appropriate link to the required document. However, because server 602 makes a translation to a final URL and sends a REDIRECT rather than a page to client 601, the document of message 4 is obtained without any user action beyond the initial dial input.


The Target URL contained in Message 3 can be an ordinary URL to an uncontrolled page, or it can be a URL that describes a controlled page. If the Target URL describes a controlled page then authentication is performed as previously described. The Target URL can also describe a URL that includes an SID that provides a preauthorized means of accessing a controlled page.


Among benefits of the “dial” command and its implementation is an improved way of accessing the Internet that is compatible with conventional telephone numbers and other identifiers. Merchants do not need to alter their print or television advertising to provide an Internet specific form of contact information, and users do not need to learn about URL5.


In the approach a single merchant server can provide multiple services that correspond to different external “telephone numbers” or other identifiers. For example, if users dial the “flight arrival” number they could be directed to the URL for the arrival page, while, if they dial the “reservations” number, they would be directed to the URL for the reservations page. A “priority gold” number could be directed to a controlled page URL that would first authenticate the user as belonging to the gold users group, and then would provide access to the “priority gold” page. An unpublished “ambassador” number could be directed to a tagged URL that permits access to the “priority gold” page without user authentication.


This invention has particular application to network sales systems such as presented in U.S. patent application Ser. No. 08/328,133, filed Oct. 24, 1994, by Payne et al. which is incorporated herein by reference.


EQUIVALENTS

Those skilled in the art will know, or be able to ascertain using no more than routine experimentation, many equivalents to the specific embodiments or the invention described herein. These and all other equivalents are intended to be encompassed by the following claims.

Claims
  • 1. A method of controlling access to a content server from a plurality of clients, comprising: receiving an access request at a content server from one of a plurality of clients;based on the access request received by the content server, generating a session identifier for controlling access to the content server by the requesting client, wherein the session identifier includes a plurality of data fields having information associated with the access request including a digital signature field that is created using a secret key and information in one or more other fields of the session identifier;transmitting the session identifier to the requesting client to enable the requesting client to access the content server;receiving a subsequent access request at the content server from the requesting client, the subsequent access request including the session identifier and the digital signature field in the session identifier, wherein the session identifier identifies the subsequent access request as being part of a session of requests; andvalidating the session identifier in the subsequent access request to authorize access to the content server, the session identifier being validated by creating a second digital signature using the secret key and information in the one or more other fields of the received session identifier and comparing the second digital signature with the received digital signature field.
  • 2. The method of claim 1, wherein the plurality of data fields comprise a user identifier field and the digital signature field, and wherein the digital signature field comprises a cryptographic hash of the information in the user identifier field.
  • 3. The method of claim 2, wherein the plurality of data fields comprise a key identifier field having information for accessing the secret key, and wherein the cryptographic hash of the information in the user identifier field is encrypted using the secret key.
  • 4. The method of claim 3, wherein the digital signature comprises a cryptographic hash of the information in the user identifier field and the information in the key identifier field.
  • 5. The method of claim 1, wherein the session identifier further includes an expiration time field, and wherein the session identifier in the subsequent access request is further validated by verifying that the received expiration time field is later than a current time.
  • 6. The method of claim 1, wherein the plurality of data fields comprise a domain identifier field having information that enables the client to access a specific domain of the content server, and wherein the session identifier in the subsequent access request is further validated by verifying that the received domain identifier field identifies an authorized domain of the content server.
  • 7. A method of controlling access to a web server computer from a plurality of clients operating web browser software applications, comprising: receiving an HTTP access request at the web server from a web browser on a client;based on the HTTP access request received by the web server, generating a session identifier for controlling access to the web server by the requesting web browser, wherein the session identifier comprises a plurality of data fields including a digital signature field that is created using a secret key and information from one or more other fields of the session identifier;transmitting the session identifier to the client, enabling the web browser on the client to access the web server;receiving a subsequent HTTP access request at the web server from the web browser on the client, the subsequent access request including the session identifier and the digital signature field in the session identifier, wherein the session identifier identifies the subsequent access request as being part of a session of requests; andvalidating the session identifier in the subsequent HTTP access request to authorize access to the content server, the session identifier being validated by creating a second digital signature using the secret key and information from one or more fields of the received session identifier and comparing the second digital signature with the received digital signature field.
  • 8. The method of claim 7, wherein the digital signature field comprises a cryptographic hash of the information from the one or more other fields of the session identifier.
  • 9. The method of claim 8, wherein the one or more other fields of the session identifier comprise a user identifier.
  • 10. The method of claim 7, wherein the subsequent requests for access to the web server comprise URL requests, and wherein the session identifier is embedded in the URL request.
  • 11. The method of claim 7, wherein the session identifier further includes an expiration time field, and wherein the session identifier in the subsequent HTTP access request is further validated by verifying that the received expiration time field is later than a current time.
  • 12. The method of claim 7, wherein the session identifier further includes a domain identifier field having information that enables the web browser to access a specific domain of the web server, and wherein the session identifier in the subsequent HTTP access request is further validated by verifying that the received domain identifier field identifies an authorized domain of the content server.
  • 13. The method of claim 1, wherein the access request includes a uniform resource locator, wherein generating a session identifier includes determining whether the access request is directed to a protected domain, wherein when the access request is directed to a protected domain, the content server determines whether the access request includes a session identifier, and wherein when the access request does not include a session identifier, a session identifier is generated.
  • 14. The method of claim 1, wherein the generated session identifier is appended to the subsequent access request received from the requesting client.
  • 15. The method of claim 1, farther comprising: using the subsequent access request at the content server to grant access to the requesting client.
  • 16. A method of controlling access to a content server from, a plurality of clients, comprising: receiving an access request at the content server from one of the plurality of clients;in response to receiving the access request, redirecting the access request from the content server to an authentication server;in response to receiving the redirected access request, authenticating the client at the authentication server, and generating a session identifier for controlling access to the content server by the requesting client, the session identifier including a plurality of data fields having information associated with the access request including a digital signature field, wherein the digital signature field is generated by the authentication server using a first copy of a secret key and information from one or more other fields of the session identifier;generating a modified access request at the authentication server by appending the session identifier to the redirected access request, wherein the session identifier identifies the modified access request as being part of a session of requests;transmitting the modified access request from the authentication server to the requesting client;subsequently receiving the modified access request at the content server from the requesting client, the modified access request including the session identifier and the digital signature field in the session identifier;validating, at the content server, the session identifier in the modified access request to grant access to the requesting client, the session identifier being validated by creating a second digital signature using a second copy of the secret key and information from one or more other fields of the session identifier andcomparing the second digital signature with the digital signature field in the modified access request.
  • 17. The method of claim 16, wherein the modified access request is automatically forwarded from the requesting client to the content server; and in response to receiving the modified access request, the content server first validates the session identifier and then grants access to the requesting client.
  • 18. The method of claim 17, wherein an access request includes a request to transmit a document for display at the requesting client; and wherein granting access to the requesting client includes transmitting the requested document to and displaying the requested document at the requesting client.
  • 19. The method of claim 16, wherein authentication includes determining whether the requesting client is a new requesting client, wherein when the requesting client is determined to be a new requesting client, the authentication server opens a new account prior to generating the session identifier.
  • 20. A method of controlling access to a server from a plurality of clients, comprising: receiving an access request at the server to access a first protected domain of the server, the access request coming from one of the plurality of clients, the server controlling access to a plurality of protected domains;based on the access request received by the server, generating a first session identifier for controlling access to the first protected domain h the requesting client, wherein the first session identifier includes a plurality of data fields having information associated with the access request, and wherein at least one of the plurality of data fields comprises an identification of the first protected domain and a digital signature field that is created using a secret key and information from one or more other fields of the first session identifier;transmitting the first session identifier to the requesting client to enable the requesting client to access the first protected domain;receiving a subsequent access request at the server from the requesting client, the subsequent access request including the first session identifier and the digital signature field in the session identifier, wherein the first session identifier identifies the subsequent access request as being part of a session of requests;validating the session identifier in the subsequent access request to authorize access to the server, the session identifier being validated by creating a second digital signature using the secret key and information from one or more other fields of the first session identifier and comparing the second digital signature with the received digital signature field;allowing access to the requesting client when the subsequent access request includes the first session identifier and requests access to the first protected domain; anddenying access to the requesting client when the subsequent access request includes the first session identifier and requests access to a second protected domain of the server.
  • 21. The method of claim 20, further comprising: generating a second session identifier including a plurality of data fields having information associated with the subsequent access request, wherein at least one of the plurality of data fields comprises an identification of the second protected domain;transmitting the second session identifier to the requesting client to enable the requesting client to access the second protected domain;receiving a subsequent access request at the server from the requesting client, the subsequent access request including the stored second session identifier;allowing access to the requesting client when the subsequent access request includes the second session identifier and requests access to the second protected domain.
  • 22. The method of claim 1, wherein the plurality of data fields include a user identifier field that includes user profile information, further comprising: in response to the subsequent access request, using the user identifier field in the session identifier to customize a page of information from the content server based on the user profile information; andtransmitting the customized page of information to the requesting client.
  • 23. The method of claim 7, wherein the plurality of data fields include a user identifier field that includes user profile information, further comprising: in response to the subsequent HTTP access request, using the user identifier field in the session identifier to customize a page of information from the web server based on the user profile information; andtransmitting the customized page of information to the web browser.
  • 24. A system, comprising: a content server configured to receive an access request from one of a plurality of clients;an authentication server configured to generate a session identifier based on the access request received by the content server, the session identifier for controlling access to the content server by the requesting client, wherein the session identifier includes a plurality of data fields having information associated with the access request including a digital signature field, and wherein the digital signature field is created using information in one or more other fields of the session identifier and a first copy of a secret key;the authentication server being further configured to transmit the session identifier to the requesting client to enable the requesting client to access the content server; andthe content server being further configured to receive a subsequent access request from the requesting client, the subsequent access request including the session identifier and the digital signature field in the session identifier, wherein the session identifier identifies the subsequent access request as being part of a session of requests and wherein the session identifier is validated to authorize access to the content server, the content server being configured to validate the session identifier by creating a second digital signature using a second copy of the secret key and information in one or more other fields of the session identifier and comparing the second digital signature with the received digital signature field.
  • 25. The system of claim 24, wherein the plurality of data fields comprise a user identifier field and the digital signature field, and wherein the digital signature field comprises a cryptographic hash of the information in the user identifier field.
  • 26. The system of claim 24, wherein the session identifier further includes an expiration time field, and wherein the content server further validates the session identifier by verifying that the received expiration time field is later than a current time.
  • 27. The system of claim 24, wherein the plurality of data fields comprise a domain identifier field having information that enables the client to access a specific domain of the content server, and wherein the content server further validates the session identifier by verifying that the received domain identifier identifies an authorized domain of the content server.
  • 28. The system of claim 24, wherein the plurality of data fields include a user identifier field that includes user profile information, and wherein the content server is further configured to customize a page of information from the content server based on the user profile information, and transmit the customized page of infoimation to the requesting client.
RELATED APPLICATION

This application is a Continuation of U.S. Ser. No. 09/005,479 filed Jan. 12, 1998, now U.S. Pat. No. 7,272,639, U.S. Ser. No. 09/548,235, filed Apr. 12, 2000, and U.S. Ser. No. 09/548,237 filed Apr. 12, 2000, the entire teachings of which are incorporated herein by reference.

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Soverain's Second Supplemental Response to Amazon.com's First Set of Interrogatories (Nos. 1-14) filed Sep. 24, 2004.
Soverain's Third Supplemental Response to Amazon.com's First Set of Interrogatories (Nos. 1-14), Sep. 2004.
Soverain 's Opposition to Defendant Amazon.com's Motion for Partial Summary Judgement of Non-Infringement (′780 Patent) and Supporting Memorandum; Declaration of Jack Grimes, Aug. 6, 2004.
Amazon.com's Reply in Support of its Motion for Partial Summary Judgment of Non-Infringement (′780 Patent) filed Aug. 19, 2004; Declaration of John Vandenberg.
Soverain's Surreply to Amazon.com's Motion for Partial Summary Judgment of Non-Infringement (′780 Patent) filed Aug. 23, 2004 and Supplemental Declaration of Jack D. Grimes Ph.D. filed Aug. 23, 2004.
Soverain's Preliminary Claim Construction (Patent Local Rule 4-2) filed Sep. 2, 2004.
Joint Disclosure of Prelminary Claim Construction and Extrinsic Evidence by Defendants Amazon.com and the Gap (with Exhibits A-B) filed Sep. 2, 2004.
Joint Claim Construction and Prehearing Statement (Patent Local Rule 4-3) (with Exhibits A-D) filed Oct. 4, 2004.
Amazon.com's First Amended Answer, Affirmative Defenses, and Counterclaims to Soverain's Complaint filed Oct. 6, 2004.
Declaration of Jack D. Grimes Ph.D., dated Nov. 15, 2004.
Soverain's Claim Construction Brief Pursuant to Patent Rule 4-5(a) dated Nov. 16, 2004.
Declaration of Dr. Richard N. Taylor in Support of Defendants' Markman Brief dated Nov. 29, 2004.
Joint Claim Construction Brief of Amazon.com and Gap dated Nov. 30, 2004.
Soverain's Claim Construction Reply Brief Pusuant to Patent Rule 4-5(c) dated Dec. 7, 2004.
Joint Claim Construction Chart (Patent Local Rule 4-5D)), filed Dec. 27, 2004 with Appendix A.
Order Denying Amazon's Motion to Stay Proceedings Pending Completion of the Reexamination, Apr. 25, 2005.
Transcript of the Markmam Hearing Before the Honorable Leonard David United States District Judge, Jan. 6, 2005.
Soverain's Disclosure of Asserted Claims and Preliminary Infringement Contentions dated Jun. 3, 2004.
Deposition of G. Winfield Treese, dated Oct. 27, 2004.
Soverain's Reply to Amazon.Com's Amended Counterclaims, dated Jan. 14, 2005.
Third Supplement to Defendant Amazon's Initial Disclosures, dated Mar. 4, 2005.
VideoTaped Deposition of Mark Levergood dated Mar. 8, 2005 (2 parts).
VideoTaped Deposition of Andrew Payne dated Mar. 11, 2005.
VideoTaped Deposition of Stephen Morris dated Mar. 9, 2005.
VideoTaped Deposition of Glenn Trewitt dated Jan. 25, 2005 (2 parts).
Soverain's Fourth Supplemental Responses to Amazon's First Set of Interrogatores (Nos. 1-14) dated Mar. 21, 2005.
Soverain's Responses to Interrogatory Nos. 22, 23, 26 and 36 of Amazon's Third Set of Interrogatores (Nos. 17-28) dated Mar. 21, 2005.
Soverain's Responses to Amazon's First Set of Requests for Admission to Plaintiff Soverain Software (Nos. 1-100) dated Mar. 21, 2005.
Memorandum Opinion dated Apr. 7, 2005.
219 Soverain's Answer to Counterclaim (Amazon's Third Amended Counterclaim) by Soverain Software LLC.(Seraphine, Jennifer) (Entered: Mar. 17, 2005).
228 Notice by Amazon.com re [210] Answer to Amended Complaint, Counterclaim Of Rejection Of Claims 1-45 Of U.S. Pat. No. 5,708,780 (Attachments: # 1 Exhibit A)(McLeod, Richard) (Entered: Mar. 25, 2005).
244 Motion to Stay [Renewed] by Amazon.com. (Attachments: # 1 Affidavit # 2 Text of Proposed Order)(Nelson, Justin) (Entered: Apr. 5, 2005).
250 Soverain's Opposition to Amazon's Renewed Motion to Stay, Apr. 20, 2005.
255 Amazon.com's Reply in Support of Renewed Motion to Stay, Apr. 25, 2005.
256 Soverain's Reply to Response to Motion re: Motion to Stay [Renewed] Surreply, Apr. 26, 2005.
Deposition of Glenn Arthur Hauman with Exhibits (Oct. 28, 2004).
Deposition of Glenn Crocker with Exhibits (Mar. 10, 2005).
Deposition of Glenn M. Trewitt with Exhibits (Jan. 25, 2005).
Deposition of Guy Henry Timothy Haskin with Exhbits (Mar. 18, 2005).
Deposition of Joshua Smith with Exhibits (Mar. 2, 2005).
Deposition of Kevin Ming-Wei Kadaja Hughes with Exhbits (Mar. 21, 2005).
Deposition of Michael Kuniavsky with Exhibits (Feb. 22, 2005).
Deposition of Michael Lazzaro with Exhibits (Mar. 9, 2005).
Deposition of Phillip Hallam-Baker with Exhibits (Mar. 11, 2005).
Deposition of Robert Allen Olson with Exhibits (Mar. 3, 2005).
Deposition of Thomas Soulanille with Exhibits (Mar. 14, 2005).
Expert Report of Alexander B. Trevor (Apr. 10, 2005).
Defendant Amazon.com Inc.'s Unopposed Motion for Leave to Amend its Answer to Include Allegations Regarding Stuff.com, filed May 18, 2005.
Declaration of James E. Geringer in Support of Amazon.com, Inc's Motion for Leave to Amend its Answer and Counterclaims to Add Stuff.com, filed May 18, 2005.
Exhibit 1 of Geringer Declaration: Excerpts of Deposition of Michael Kuniavsky, filed May 18, 2005.
Exhibit 2 of Geringer Declaration: E-mail from Brooks Cutter to Mike Kuniavsky (filed May 18, 2005 [date correction]).
Exhibit 3 of Geringer Declaration: Excerpts of Deposition of Richard Boake, filed May 18, 2005.
Exhibit 5 of Geringer Declaration: Excerpts of Deposition of Andrew Payne, filed May 18, 2005.
Exhibit 6 of Geringer Declaration: E-mail from Andrew Payne to Winfield Treese, et al. (filed May 18, 2005 [date correction]).
Exhibit 7 of Geringer Declaration: Excerpts of Deposition of Winfield Treese, filed May 18, 2005.
Exhibit 8 of Geringer Declaration: Amazon.com, Inc.'s [Proposed] fourth Amended Answer, Affirmative Defenses, and Counterclaims to Soverain Software, LLC's Complaint (Redlined Version), filed May 18, 2005.
Amazon.com's Motion for Partial Summary Judgment that ′314 claims 34-39, ′492 claims 17-18 and 35-36, and ′780 claims 1, 4, and 22-24 are invalid under 35 U.S.C. 102, filed Jun. 10, 2005.
Amazon.com's Motion for Partial Summary Judgment that claims are indefinite under 35 U.S.C. 112, filed Jun. 10, 2005.
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Exhibit B to Soverain Software LLC v. CDW et al., Amended P.R. 4-3 Joint Claim Construction and Prehearing Statement, Jury Trial Demanded, filed Mar. 27, 2009, 15 pages.
Exhibit C to Soverain Software LLC v. CDW et al., Amended P.R. 4-3 Joint Claim Construction and Prehearing Statement, Jury Trial Demanded, filed Mar. 27, 2009, 111 pages.
Exhibit D to Soverain Software LLC v. CDW et al., Amended P.R. 4-3 Joint Claim Construction and Prehearing Statement, Jury Trial Demanded, filed Mar. 27, 2009, 46 pages.
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Amended P.R. 4-3 Joint Claim Construction dated Oct. 6, 2010, with Prehearing Statement and Exhibits, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 42 pages.
Answer dated Apr. 27, 2010, by Defendant Avon Products, Inc., to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 21 pages.
Answer dated Aug. 26, 2009, by Defendant Ballard Design, Inc., to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 42 pages.
Answer dated Aug. 26, 2009, by Defendant Cornerstone Brands, Inc., to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 41 pages.
Answer dated Aug. 26, 2009, by Defendant Garnet Hill, Inc., to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 41 pages.
Answer dated Aug. 26, 2009, by Defendant HSN Improvements, LLC, to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 42 pages.
Answer dated Aug. 26, 2009, by Defendant HSN Inc., to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 41 pages.
Answer dated Aug. 26, 2009, by Defendant Smith & Noble LLC, to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 41 pages.
Answer dated Aug. 26, 2009, by Defendant The Terrirory Ahead, Inc., to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 41 pages.
Answer dated Aug. 27, 2009, by Defendant Bidz.com, Inc., to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 17 pages.
Answer dated Aug. 31, 2009, by Defendant Amway Corp., to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 47 pages.
Answer dated Aug. 31, 2009, by Defendant Shutterfly, Inc., to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 56 pages.
Answer dated Sep. 14, 2009, by Defendant J.C. Penney Corporation, Inc., to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 20 pages.
Answer dated Sep. 15, 2009, by Defendant QVC, Inc., to Soverain's Complaint for Patent Infringement, with Defenses and Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 22 pages.
Answer dated Sep. 15, 2009, by Defendant Vistaprint Ltd., to Soverain's Complaint for Patent Infringement, with Affirmative Defenses and Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 39 pages.
Answer dated Sep. 15, 2009, by Defendant Vistaprint USA, Inc., to Soverain's Complaint for Patent Infringement, with Affirmative Defenses and Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 38 pages.
Answer dated Sep. 15, 2009, by Defendants Victoria's Secret Stores Brand Management, Inc. and Victoria's Secret Direct Brand Management, LLC, to Soverain's Complaint for Patent Infringement, with Affirmative Defenses and Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 24 pages.
Defendants' Motion dated Sep. 1, 2011, for Expedited Briefing for the Motion to Clarify the Scope of the Claim Term “Computer”, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 6 pages.
Defendants' Motion dated Sep. 1, 2011, for More Definite Statement to Clarify the Scope of the Claim Term “Computer” by Avon Products, Inc., Bidz.com, Inc., J.C. Penney Corporation, Inc., Visctoria's Secret Direct Brand Management, LLC, and Victoria's Secret Stores Brand Management, Inc. with Exhibits, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 17 pages.
Defendants' Reply dated Sep. 26, 2011, in Support of their Motion to Clarify the Scope of the Claim Term “Computer”, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 53 pages.
Expert Report dated Jan. 10, 2011, of Dr. Andrew S. Cromarty regarding invalidity of U.S. Pat. No. 7,272,639, issued Sep. 18, 2007, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 48 pages.
First Amended Answer dated Nov. 30, 2010, by Defendant J.C. Penney Corporation, Inc., to Soverain's Complaint for Patent Infringement, with Counterclaims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 21 pages.
Memorandum Opinion dated Jan. 13, 2011, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 31 pages.
Motion dated Jan. 24, 2011, by Defendants, for Leave to Amend Invalidity Contentions, Redacted, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 16 pages.
Motions In Limine dated Apr. 11, 2011, by Soverain Software LLC, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 20 pages.
Opening Claim Construction Brief dated Sep. 20, 2010, by Soverain Software LLC, Pursuant to Patent Rule 4-5(a), with Exhibits A-M, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 745 pages.
Order dated Apr. 21, 2011, on Pre-Trial Motions, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 4 pages.
P.R. 4-3 Joint Claim Construction dated Aug. 31, 2010, with Prehearing Statement, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 67 pages.
Patent Rule 4-5(c) Reply dated Oct. 22, 2010, by Soverain Software LLC, to Defendants' Responsive Claim Construction Briefs, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 34 pages.
Plantiff's Motion dated Sep. 6, 2011, in Opposition to the Defendants' Motion for Expedited Briefing on their Motion to Clarify the Scope of the Claim Term “Computer”, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 6 pages.
Rebuttal Report dated Jan. 31, 2011, of plaintiff's expert Michael I. Shamos, Ph.D., J.D., concerning validity (with exhibits), Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 120 pages.
Responsive Brief dated Oct. 15, 2010, by Avon Products Inc., on Claim Construction for the term “Stored Session Identifier” in the Asserted ′639 Patent Claims, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 210 pages.
Responsive Claim Construction Brief dated Oct. 15, 2010, by Amway Corp. to which QVC, Inc. Joins in Part, with Exhibits A-H, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 255 pages.
Responsive Claim Construction Brief dated Oct. 15, 2010, by the Defendants, Pursuant to Patent Rule 4-5(b), with Exhibits, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 422 pages.
Revised Opening Claim Construction dated Oct. 8, 2010, by Soverain Software LLC, Pursuant to Patent Rule 4-5(a), Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 340 pages.
Transcript dated Feb. 11, 2011, of the Markman Hearing Before the Honorable Leonard David United States District Judge, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 92 pages.
Unopposed Motion dated Jan. 4, 2011, to Supplement Infringement Contentions Pursuant to P.R. 3-6(b) filed by Plaintiff Soverain Software LLC, Soverain Software LLC v. J.C. Penney Corporation, Inc. et al., (E.D. Tex. 6:09-cv-00274), 6 pages.
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Related Publications (1)
Number Date Country
20060095526 A1 May 2006 US
Continuations (3)
Number Date Country
Parent 09005479 Jan 1998 US
Child 11300245 US
Parent 09548235 Apr 2000 US
Child 09005479 US
Parent 09548237 Apr 2000 US
Child 09548235 US