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Venkat Tangirala
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San Diego, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Virtual SIM card for mobile handsets
Patent number
8,811,969
Issue date
Aug 19, 2014
QUALCOMM Incorporated
Guangming Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for switching virtual SIM service contracts wh...
Patent number
8,649,789
Issue date
Feb 11, 2014
QUALCOMM Incorporated
Guangming Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for updating rules governing the switching of...
Patent number
8,639,245
Issue date
Jan 28, 2014
QUALCOMM Incorporated
Guangming Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for switching virtual SIM service contracts ba...
Patent number
8,634,828
Issue date
Jan 21, 2014
QUALCOMM Incorporated
Guangming Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for performing multi-stage virtual SIM provisioni...
Patent number
8,606,232
Issue date
Dec 10, 2013
QUALCOMM Incorporated
Ta-yan Siu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of handling automatic call origination and system determinat...
Patent number
8,577,379
Issue date
Nov 5, 2013
QUALCOMM Incorporated
Guangming Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Virtual SIM card for mobile handsets
Patent number
8,200,736
Issue date
Jun 12, 2012
QUALCOMM Incorporated
Guangming Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Inter-system soft handoff
Patent number
6,002,933
Issue date
Dec 14, 1999
QUALCOMM Incorporated
Paul E. Bender
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
VIRTUAL SIM CARD FOR MOBILE HANDSETS
Publication number
20100311468
Publication date
Dec 9, 2010
Guangming Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND SYSTEM FOR PERFORMING MULTI-STAGE VIRTUAL SIM PROVISIONI...
Publication number
20100311391
Publication date
Dec 9, 2010
Ta-yan Siu
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR PERFORMING SOFT SWITCH OF VIRTUAL SIM SERV...
Publication number
20100311402
Publication date
Dec 9, 2010
Prasanna SRINIVASAN
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR SWITCHING VIRTUAL SIM SERVICE CONTRACTS WH...
Publication number
20100311418
Publication date
Dec 9, 2010
Guangming Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR SWITCHING VIRTUAL SIM SERVICE CONTRACTS BA...
Publication number
20100311444
Publication date
Dec 9, 2010
Guangming Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR UPDATING RULES GOVERNING THE SWITCHING OF...
Publication number
20100311404
Publication date
Dec 9, 2010
Guangming Shi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
VIRTUAL SIM CARD FOR MOBILE HANDSETS
Publication number
20090163175
Publication date
Jun 25, 2009
Guangming SHI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
INTER-SYSTEM SOFT HANDOFF
Publication number
20020132622
Publication date
Sep 19, 2002
PAUL E. BENDER
H04 - ELECTRIC COMMUNICATION TECHNIQUE