Membership
Tour
Register
Log in
David X. Chen
Follow
Person
Waterbury, CT, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Switching complex architecture and operation
Patent number
7,701,892
Issue date
Apr 20, 2010
Fujitsu Limited
David X. Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Switching complex architecture and operation
Patent number
6,891,836
Issue date
May 10, 2005
Fujitsu Network Communications, Inc.
David X. Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Switching redundancy control
Patent number
6,700,868
Issue date
Mar 2, 2004
Fujitsu Network Communications, Inc.
Alexander Smith
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for communicating data using modified header bits...
Patent number
6,658,006
Issue date
Dec 2, 2003
Fujitsu Network Communications, Inc.
David X. Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dialable data services/TDM bandwidth management
Patent number
6,584,119
Issue date
Jun 24, 2003
Fujitsu Network Communications, Inc.
Hamid Rezaie
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Hybrid ATM/TDM transport over a common fiber ring
Patent number
6,501,758
Issue date
Dec 31, 2002
Fujitsu Network Communications, Inc.
David X. Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for switching signals of multiple different co...
Patent number
6,498,792
Issue date
Dec 24, 2002
Fujitsu Network Communications, Inc.
Gary P. Johnson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dialable data services/TDM bandwidth management
Patent number
6,396,847
Issue date
May 28, 2002
Fujitsu Networks Communications, Inc.
Hamid Rezaie
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Switching redundancy control
Patent number
6,359,858
Issue date
Mar 19, 2002
Fujitsu Network Communications, Inc.
Alexander Smith
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Protection architecture for virtual channel connections (VCCS) in a...
Patent number
6,353,593
Issue date
Mar 5, 2002
Fujitsu Network Communications, Inc.
David X. Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for hybrid protection in a switching network
Patent number
6,317,426
Issue date
Nov 13, 2001
Fujitsu Network Communications, Inc.
Jairo Abraham Afanador
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for generating a proxy connection endpoint for...
Patent number
5,864,555
Issue date
Jan 26, 1999
General DataComm, Inc.
Deepak Mathur
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for detection of operation administration and...
Patent number
5,659,540
Issue date
Aug 19, 1997
General DataComm, Inc.
David X. Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Switching complex architecture and operation
Publication number
20050207371
Publication date
Sep 22, 2005
Fujitsu Limited, a Japanese corporation
David X. Chen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Switching redundancy control
Publication number
20020089925
Publication date
Jul 11, 2002
Fujitsu Network Communication, Inc., a California Corporation
Alexander Smith
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Dialable data services/TDM bandwidth management
Publication number
20020021713
Publication date
Feb 21, 2002
Fujitsu Network Communications, Inc., a California Corporation
Hamid Rezaie
H04 - ELECTRIC COMMUNICATION TECHNIQUE