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Stephen M. Matyas Jr.
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Poughkeepsie, NY, US
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Patents Grants
last 30 patents
Information
Patent Grant
System and method of uniquely authenticating each replication of a...
Patent number
6,941,461
Issue date
Sep 6, 2005
International Business Machines Corporation
Fernando Incertis Carro
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and system of marking a text document with a pattern of extr...
Patent number
6,941,460
Issue date
Sep 6, 2005
International Business Machines Corporation
Fernando Incertis Carro
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time stamping method using time delta in key certificate
Patent number
6,742,119
Issue date
May 25, 2004
International Business Machines Corporation
Mohammad Peyravian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Biometric based multi-party authentication
Patent number
6,697,947
Issue date
Feb 24, 2004
International Business Machines Corporation
Stephen Michael Matyas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Generating user-dependent keys and random numbers
Patent number
6,687,375
Issue date
Feb 3, 2004
International Business Machines Corporation
Stephen Michael Matyas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for the secured distribution of multimedia titles
Patent number
RE38375
Issue date
Dec 30, 2003
International Business Machines Corporation
Amir Herzberg
713 - Electrical computers and digital processing systems: support
Information
Patent Grant
Systems, methods and computer program products for reducing effecti...
Patent number
6,560,337
Issue date
May 6, 2003
International Business Machines Corporation
Mohammad Peyravian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for providing interoperability between key rec...
Patent number
6,535,607
Issue date
Mar 18, 2003
International Business Machines Corporation
Coimbatore S. Chandersekaran
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Protection of biometric data via key-dependent sampling
Patent number
6,507,912
Issue date
Jan 14, 2003
International Business Machines Corporation
Stephen Michael Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Authentication for secure devices with limited cryptography
Patent number
6,505,301
Issue date
Jan 7, 2003
International Business Machines Corporation
Stephen M. Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Authentication for secure devices with limited cryptography
Patent number
6,505,302
Issue date
Jan 7, 2003
International Business Machines Corporation
Stephen M. Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Decentralized systems methods and computer program products for sen...
Patent number
6,363,154
Issue date
Mar 26, 2002
International Business Machines Corporation
Mohammad Peyravian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method, system and apparatus for improved reliability in generating...
Patent number
6,345,098
Issue date
Feb 5, 2002
International Business Machines Corporation
Stephen M. Matyas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method, system and apparatus for generating self-validating prime n...
Patent number
6,307,938
Issue date
Oct 23, 2001
International Business Machines Corporation
Stephen M. Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for cryptographically transforming an input bl...
Patent number
6,301,362
Issue date
Oct 9, 2001
International Business Machines Corporation
Stephen M. Matyas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Authentication for secure devices with limited cryptography
Patent number
6,243,812
Issue date
Jun 5, 2001
International Business Machines Corporation
Stephen M. Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for advanced symmetric key block cipher with v...
Patent number
6,243,470
Issue date
Jun 5, 2001
International Business Machines Corporation
Don Coppersmith
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for advanced byte-oriented symmetric key block...
Patent number
6,192,129
Issue date
Feb 20, 2001
International Business Machines Corporation
Don Coppersmith
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Symmetric block cipher using multiple stages with modified type-1 a...
Patent number
6,189,095
Issue date
Feb 13, 2001
International Business Machines Corporation
Don Coppersmith
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for a symmetric block cipher using multiple st...
Patent number
6,185,679
Issue date
Feb 6, 2001
International Business Machines Corporation
Don Coppersmith
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for a symmetric block cipher using multiple st...
Patent number
6,185,304
Issue date
Feb 6, 2001
International Business Machines Corporation
Don Coppersmith
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Authentication for secure devices with limited cryptography
Patent number
6,161,180
Issue date
Dec 12, 2000
International Business Machines Corporation
Stephen M. Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for providing product survey information in an...
Patent number
6,102,287
Issue date
Aug 15, 2000
International Business Machines Corporation
Stephen M. Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for interoperable validation of key recovery i...
Patent number
6,058,188
Issue date
May 2, 2000
International Business Machines Corporation
Coimbatore S. Chandersekaran
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Interoperable cryptographic key recovery system with verification b...
Patent number
6,052,469
Issue date
Apr 18, 2000
International Business Machines Corporation
Donald Byron Johnson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for encrypting long blocks using a short-block...
Patent number
5,987,124
Issue date
Nov 16, 1999
International Business Machines Corporation
Stephen Michael Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for establishing an authenticated shared secre...
Patent number
5,953,420
Issue date
Sep 14, 1999
International Business Machines Corporation
Stephen Michael Matyas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Two-phase cryptographic key recovery system
Patent number
5,937,066
Issue date
Aug 10, 1999
International Business Machines Corporation
Rosario Gennaro
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for authentication of printed documents
Patent number
5,912,974
Issue date
Jun 15, 1999
International Business Machines Corporation
Christopher J. Holloway
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for verifiably providing key recovery informat...
Patent number
5,907,618
Issue date
May 25, 1999
International Business Machines Corporation
Rosario Gennaro
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Time Stamping Method Employing a Separate Ticket and Stub
Publication number
20070294537
Publication date
Dec 20, 2007
International Business Machines Corporation
Mohammad Peyravian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Three party signing protocol providing non-linkability
Publication number
20030190046
Publication date
Oct 9, 2003
Matthew Albert Kamerman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for providing answers in a personal entropy system
Publication number
20030105959
Publication date
Jun 5, 2003
Stephen M. Matyas
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method and system of marking a text document with a pattern of extr...
Publication number
20020013794
Publication date
Jan 31, 2002
Fernando Incertis Carro
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and system of reversibly marking a text document with a patt...
Publication number
20010054146
Publication date
Dec 20, 2001
Fernando Incertis Carro
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
System and method of uniquely authenticating each replication of a...
Publication number
20010042206
Publication date
Nov 15, 2001
International Business Machines Corporation of Armonk
Fernando Incertis Carro
G06 - COMPUTING CALCULATING COUNTING