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Richard S. Simons
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Duluth, GA, US
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last 30 patents
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Patent Grant
Interactive television security through transaction time stamping
Patent number
5,764,275
Issue date
Jun 9, 1998
Thomson multimedia S.A.
John P. Lappington
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Patent Grant
Interactive television security through transaction time stamping
Patent number
5,519,433
Issue date
May 21, 1996
Zing Systems, L.P.
John P. Lappington
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS