Walter D. Benvin

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New York, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Data certification and verification system having a multiple-user-c...
- Patent number 6,658,400
- Issue date Dec 2, 2003
- William S. Perell
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Data certification and verification system having a multiple- user-...
- Publication number 20010047347
- Publication date Nov 29, 2001
- William S. Perell
- G06 - COMPUTING CALCULATING COUNTING