David Grabelsky

Person

Skokie, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for PSTN-based IP active call recovery and re-...
- Patent number 8,547,967
- Issue date Oct 1, 2013
- Hewlett-Packard Development Company, L.P.
- David A. Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for network based policy enforcement of intellige...
- Patent number 8,539,552
- Issue date Sep 17, 2013
- Hewlett-Packard Development Company, L.P.
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
IP-based enhanced emergency services using intelligent client devices
- Patent number 8,509,225
- Issue date Aug 13, 2013
- Hewlett-Packard Development Company, L.P.
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
IP-based enhanced emergency services using intelligent client devices
- Patent number 8,027,333
- Issue date Sep 27, 2011
- Hewlett-Packard Company
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for PSTN-based IP active call recovery and re-...
- Patent number 7,990,955
- Issue date Aug 2, 2011
- Hewlett-Packard Company
- David A. Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for network based call-pickup
- Patent number 7,860,089
- Issue date Dec 28, 2010
- Hewlett-Packard Company
- Anoop Tripathi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and methods for providing presence services in IP network
- Patent number 7,702,726
- Issue date Apr 20, 2010
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Media gateway proxy
- Patent number 7,634,577
- Issue date Dec 15, 2009
- 3Com Corporation
- David A. Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for PSTN-based IP active call recovery and re-...
- Patent number 7,613,170
- Issue date Nov 3, 2009
- 3Com Corporation
- David A. Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for maximizing the use of bandwidth optimization...
- Patent number 7,564,835
- Issue date Jul 21, 2009
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for providing directory based services
- Patent number 7,480,723
- Issue date Jan 20, 2009
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for monitoring and management of the performance...
- Patent number 7,453,815
- Issue date Nov 18, 2008
- 3Com Corporation
- David A. Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for address mapping in a network access system and a network...
- Patent number 7,450,560
- Issue date Nov 11, 2008
- 3Com Corporation
- David A. Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
IP-based enhanced emergency services using intelligent client devices
- Patent number 7,440,442
- Issue date Oct 21, 2008
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for network based call-pickup
- Patent number 7,417,988
- Issue date Aug 26, 2008
- 3Com Corporation
- Anoop Tripathi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for distributed network address translation with...
- Patent number 7,032,242
- Issue date Apr 18, 2006
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for supporting secondary address delivery on remote access s...
- Patent number 6,996,621
- Issue date Feb 7, 2006
- 3COM Corporation
- Michael S. Borella
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
System and method for switching security associations
- Patent number 6,966,003
- Issue date Nov 15, 2005
- 3Com Corporation
- Boby Joseph
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Architecture for a central office using IP technology
- Patent number 6,954,454
- Issue date Oct 11, 2005
- UT Starcom, Inc.
- Guido M. Schuster
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for distributed generation of unique random numbe...
- Patent number 6,948,074
- Issue date Sep 20, 2005
- 3Com Corporation
- Michael S. Borella
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and protocol for a medium access control layer for local are...
- Patent number 6,937,610
- Issue date Aug 30, 2005
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Distributed network address translation for a network telephony system
- Patent number 6,822,957
- Issue date Nov 23, 2004
- 3Com Corporation
- Guido M. Schuster
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for providing transaction capabilities applica...
- Patent number 6,785,374
- Issue date Aug 31, 2004
- Guanglu Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for allocating persistent private network address...
- Patent number 6,781,982
- Issue date Aug 24, 2004
- 3Com Corporation
- Michael S. Borella
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for address server redirection for multiple addre...
- Patent number 6,768,743
- Issue date Jul 27, 2004
- 3Com Corporation
- Michael S. Borella
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Media gateway proxy
- Patent number 6,766,377
- Issue date Jul 20, 2004
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Load balancing among media gateways
- Patent number 6,711,159
- Issue date Mar 23, 2004
- 3COM Corporation
- David A. Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for dual-network address utilization
- Patent number 6,708,219
- Issue date Mar 16, 2004
- 3COM Corporation
- Michael S. Borella
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for distributed network address translation for m...
- Patent number 6,697,354
- Issue date Feb 24, 2004
- 3COM Corporation
- Michael S. Borella
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and system for monitoring and management of the performance...
- Patent number 6,678,250
- Issue date Jan 13, 2004
- 3COM Corporation
- David A. Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR PSTN-BASED IP ACTIVE CALL RECOVERY AND RE-...
- Publication number 20110273979
- Publication date Nov 10, 2011
- David A. Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IP-BASED ENHANCED EMERGENCY SERVICES USING INTELLIGENT CLIENT DEVICES
- Publication number 20110267986
- Publication date Nov 3, 2011
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and Methods for Providing Presence Services In IP Network
- Publication number 20100107226
- Publication date Apr 29, 2010
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR PSTN-BASED IP ACTIVE CALL RECOVERY AND RE-...
- Publication number 20100061228
- Publication date Mar 11, 2010
- 3Com Corporation
- David A. Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IP-Based Enhanced Emergency Services Using Intelligent Client Devices
- Publication number 20090003535
- Publication date Jan 1, 2009
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and System for Network Based Call-Pickup
- Publication number 20080298361
- Publication date Dec 4, 2008
- 3Com Corporation
- Anoop Tripathi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Distributed database
- Publication number 20070106683
- Publication date May 10, 2007
- 3Com Corporation
- David Grabelsky
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IP-based enhanced emergency services using intelligent client devices
- Publication number 20050083911
- Publication date Apr 21, 2005
- 3Com Corporation, a corporation of the State of Delaware
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and system for providing directory based services
- Publication number 20040249951
- Publication date Dec 9, 2004
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System, mobile communications unit, and softswitch method and appar...
- Publication number 20040176128
- Publication date Sep 9, 2004
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and apparatus for providing transaction capabilities applica...
- Publication number 20040062375
- Publication date Apr 1, 2004
- 3Com Corporation
- Guanglu Wang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
System and methods for providing instant services in an internet pr...
- Publication number 20040003046
- Publication date Jan 1, 2004
- 3Com Corporation
- David Grabelsky
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

David Grabelsky

Person

Patents Grantslast 30 patents

Method and apparatus for PSTN-based IP active call recovery and re-...

System and method for network based policy enforcement of intellige...

IP-based enhanced emergency services using intelligent client devices

IP-based enhanced emergency services using intelligent client devices

Method and apparatus for PSTN-based IP active call recovery and re-...

Method and system for network based call-pickup

System and methods for providing presence services in IP network

Media gateway proxy

Method and apparatus for PSTN-based IP active call recovery and re-...

System and method for maximizing the use of bandwidth optimization...

Method and system for providing directory based services

Method and system for monitoring and management of the performance...

Method for address mapping in a network access system and a network...

IP-based enhanced emergency services using intelligent client devices

Method and system for network based call-pickup

Method and system for distributed network address translation with...

Method for supporting secondary address delivery on remote access s...

System and method for switching security associations

Architecture for a central office using IP technology

Method and system for distributed generation of unique random numbe...

Method and protocol for a medium access control layer for local are...

Distributed network address translation for a network telephony system

Method and apparatus for providing transaction capabilities applica...

Method and system for allocating persistent private network address...

Method and system for address server redirection for multiple addre...

Media gateway proxy

Load balancing among media gateways

Method and system for dual-network address utilization

Method and system for distributed network address translation for m...

Method and system for monitoring and management of the performance...

Patents Applicationslast 30 patents

METHOD AND APPARATUS FOR PSTN-BASED IP ACTIVE CALL RECOVERY AND RE-...

IP-BASED ENHANCED EMERGENCY SERVICES USING INTELLIGENT CLIENT DEVICES

System and Methods for Providing Presence Services In IP Network

METHOD AND APPARATUS FOR PSTN-BASED IP ACTIVE CALL RECOVERY AND RE-...

IP-Based Enhanced Emergency Services Using Intelligent Client Devices

Method and System for Network Based Call-Pickup

Distributed database

IP-based enhanced emergency services using intelligent client devices

Method and system for providing directory based services

System, mobile communications unit, and softswitch method and appar...

Method and apparatus for providing transaction capabilities applica...

System and methods for providing instant services in an internet pr...