Michael Christoff

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Rockaway, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for collaborative annotation using a digital pen
- Patent number 7,913,162
- Issue date Mar 22, 2011
- Pitney Bowes Inc.
- Gary G. Hansen
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
System and method for collaborative annotation using a digital pen
- Publication number 20070143663
- Publication date Jun 21, 2007
- Gary G. Hansen
- G06 - COMPUTING CALCULATING COUNTING