Abraham Y. Chen

Person

Mountain View, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Unified voice and data networking having demarcation lines
- Patent number 7,051,090
- Issue date May 23, 2006
- Avinta Communications, Inc
- Abraham Y. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
User settable unified workstation identification system
- Patent number 6,721,790
- Issue date Apr 13, 2004
- Avinta Communications, Inc
- Abraham Y. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Alternate wide area network access facility for locally networked c...
- Patent number 6,512,760
- Issue date Jan 28, 2003
- Avinta Communications, Inc.
- Abraham Y. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Unified distributed voice and data local area networking
- Patent number 6,456,633
- Issue date Sep 24, 2002
- Avinta Communications, Inc.
- Abraham Y. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Extended public switched telephone network architecture with enhanc...
- Patent number 5,930,346
- Issue date Jul 27, 1999
- Abraham Y. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Station controller for distributed single line PABX
- Patent number 5,596,631
- Issue date Jan 21, 1997
- Abraham Y. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Network interface unit
- Patent number 5,528,675
- Issue date Jun 18, 1996
- Abraham Y. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Local switching system
- Patent number 5,317,631
- Issue date May 31, 1994
- Areanex Technology, Inc.
- Abraham Y. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Adjustable interactive audio training system
- Patent number 5,087,205
- Issue date Feb 11, 1992
- Abraham Y. Chen
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Modular automatic telephone switching system
- Patent number 5,022,069
- Issue date Jun 4, 1991
- Abraham Y. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Escrow device for coin-operated systems
- Patent number 4,782,937
- Issue date Nov 8, 1988
- Tatung Telecom Corp.
- Abraham Y. Chen
- G07 - CHECKING-DEVICES

Patents Applicationslast 30 patents

Information Patent Application
On-demand bandwidth activation for detailed billing
- Publication number 20040100990
- Publication date May 27, 2004
- Abraham Y. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Unified voice and data networking having demarcation lines
- Publication number 20020087689
- Publication date Jul 4, 2002
- Abraham Y. Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Abraham Y. Chen

Person

Patents Grantslast 30 patents

Unified voice and data networking having demarcation lines

User settable unified workstation identification system

Alternate wide area network access facility for locally networked c...

Unified distributed voice and data local area networking

Extended public switched telephone network architecture with enhanc...

Station controller for distributed single line PABX

Network interface unit

Local switching system

Adjustable interactive audio training system

Modular automatic telephone switching system

Escrow device for coin-operated systems

Patents Applicationslast 30 patents

On-demand bandwidth activation for detailed billing

Unified voice and data networking having demarcation lines