John Carvalho

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Ruscombe, GB

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus to maintain network coverage when using a tran...
- Patent number 7,809,385
- Issue date Oct 5, 2010
- AT&T Mobility II LLC
- Ayman Mostafa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus to maintain network coverage when using a tran...
- Patent number 7,493,129
- Issue date Feb 17, 2009
- AT&T Mobility II LLC
- Ayman Mostafa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Selective retry of attach and location update procedures
- Patent number 7,346,348
- Issue date Mar 18, 2008
- AT&T Mobility II, LLC
- Daryl Gazzard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Systems and methods for GSM selection
- Patent number 7,167,707
- Issue date Jan 23, 2007
- Cingular Wireless II, LLC
- Daryl Gazzard
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS TO MAINTAIN NETWORK COVERAGE WHEN USING A TRAN...
- Publication number 20090170543
- Publication date Jul 2, 2009
- Ayman Mostafa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE