Serge Gaumain

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Yverdon, CH

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Patents Grantslast 30 patents

Information Patent Grant
Generating a root key for decryption of a transmission key allowing...
- Patent number 7,725,740
- Issue date May 25, 2010
- Nagravision S.A.
- Henri Kudelski
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for inducing upgrading of an expandable product
- Patent number 6,913,197
- Issue date Jul 5, 2005
- Nagracard S.A.
- Serge Gaumain
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Security key generation method
- Publication number 20040236959
- Publication date Nov 25, 2004
- Henri Kudelski
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method to inducing upgrading of a sim card
- Publication number 20040067772
- Publication date Apr 8, 2004
- Serge Gaumain
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method for inducing upgrading of an expandable product
- Publication number 20040026494
- Publication date Feb 12, 2004
- Serge Gaumain
- G06 - COMPUTING CALCULATING COUNTING