Paul M. Zank

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Simi Valley, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for authenticating an electronic signature
- Patent number 7,693,312
- Issue date Apr 6, 2010
- Topaz Systems, Inc.
- Anthony E. Zank
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for authenticating an electronic signature
- Patent number 7,190,815
- Issue date Mar 13, 2007
- Topaz Systems, Inc.
- Anthony E. Zank
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Method for Authenticating an Electronic Signature
- Publication number 20070248247
- Publication date Oct 25, 2007
- TOPAZ SYSTEMS, INC.
- Anthony E. Zank
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Touch pad stylus with roller ball
- Publication number 20060176286
- Publication date Aug 10, 2006
- Anthony E. Zank
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Electronic payment terminal with active cover
- Publication number 20060158434
- Publication date Jul 20, 2006
- Anthony E. Zank
- G07 - CHECKING-DEVICES
Information Patent Application
Method for authenticating an electronic signature
- Publication number 20050276453
- Publication date Dec 15, 2005
- Anthony E. Zank
- G06 - COMPUTING CALCULATING COUNTING