Gerritt Bleumer

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Velten, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for generating many-time restrictive blind signatures
- Patent number 7,162,639
- Issue date Jan 9, 2007
- AT&T Corp.
- Gerritt Bleumer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for generating many-time restrictive blind signatures
- Patent number 6,959,388
- Issue date Oct 25, 2005
- AT&T Corp.
- Gerritt Bleumer
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Method for the secure distribution of security modules
- Publication number 20020046175
- Publication date Apr 18, 2002
- Gerritt Bleumer
- G07 - CHECKING-DEVICES