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Patents Grants
last 30 patents
Information
Patent Grant
Wireless communication system that supports multiple standards, mul...
Patent number
7,805,139
Issue date
Sep 28, 2010
Ericsson AB
Kamel M. Shaheen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system that supports multiple standards, mul...
Patent number
7,580,707
Issue date
Aug 25, 2009
Nortel Networks Limited
Kamel M. Shaheen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network directed system selection for cellular and PCS enhanced roa...
Patent number
6,438,369
Issue date
Aug 20, 2002
Nortel Networks LTD
Chenhong Huang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dynamic vocoder selection for storing and forwarding voice signals
Patent number
6,363,339
Issue date
Mar 26, 2002
Nortel Networks Limited
Rafi Rabipour
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network directed system selection for cellular and PCS enhanced roa...
Patent number
6,363,251
Issue date
Mar 26, 2002
Nortel Networks LTD
Chenhong Huang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Systems and methods for implementing private wireless communications
Patent number
6,219,539
Issue date
Apr 17, 2001
Nortel Networks Corporation
Kalyan Basu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Wireless communication system that supports multiple standards, mul...
Patent number
6,169,893
Issue date
Jan 2, 2001
Nortel Networks Limited
Kamel M. Shaheen
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Network directed system selection for cellular and PCS enhanced roa...
Patent number
6,058,309
Issue date
May 2, 2000
Nortel Networks Corporation
Chenhong Huang
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for providing existing telephone switching equ...
Patent number
4,903,263
Issue date
Feb 20, 1990
Network Access Corporation
Rajendra Patel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for providing existing telephone switching equ...
Patent number
4,853,955
Issue date
Aug 1, 1989
Network Access Corporation
David W. Thorn
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
WIRELESS COMMUNICATION SYSTEM THAT SUPPORTS MULTIPLE STANDARDS, MUL...
Publication number
20090275330
Publication date
Nov 5, 2009
Nortel Networks Limited
KAMEL M. SHAHEEN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Wireless communication system that supports multiple standards, mul...
Publication number
20050048969
Publication date
Mar 3, 2005
Kamel M. Shaheen
H04 - ELECTRIC COMMUNICATION TECHNIQUE