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Sunil Thadani
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Naperville, IL, US
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last 30 patents
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Patent Grant
Enhanced recharge card management system with reseller users' secur...
Patent number
7,356,327
Issue date
Apr 8, 2008
Lucent Technologies Inc.
Yigang Cai
G06 - COMPUTING CALCULATING COUNTING
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last 30 patents
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Patent Application
Enhanced recharge card management system with reseller users' secur...
Publication number
20050108126
Publication date
May 19, 2005
Yigang Cai
G06 - COMPUTING CALCULATING COUNTING
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Patent Application
Credit reservation transactions in a prepaid electronic commerce sy...
Publication number
20040141601
Publication date
Jul 22, 2004
Yigang Cai
G06 - COMPUTING CALCULATING COUNTING