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Guy Helm
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Plano, TX, US
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last 30 patents
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Patent Grant
Methods, systems and program products for supporting prepaid servic...
Patent number
8,498,391
Issue date
Jul 30, 2013
Apple Inc.
Kuntal Chowdhury
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
Method and apparatus for efficient simultaneous re-activation of mu...
Publication number
20050036463
Publication date
Feb 17, 2005
Nortel Networks Limited
Sanket Satish Nesargi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
Method for transferring PPP inactivity time in a CDMA2000 network
Publication number
20050021770
Publication date
Jan 27, 2005
Guy Helm
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Application
Methods, systems and program products for supporting prepaid servic...
Publication number
20040106393
Publication date
Jun 3, 2004
NORTEL NETWORKS LIMITED
Kuntal Chowdhury
H04 - ELECTRIC COMMUNICATION TECHNIQUE