Nathan Rosenberg

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Orange, CT, US

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Patents Grantslast 30 patents

Information Patent Grant
System and method for verifying digital postal marks
- Patent number 6,810,390
- Issue date Oct 26, 2004
- Cheryl L. Picoult
- G07 - CHECKING-DEVICES
Information Patent Grant
Method and apparatus for providing authorization to make multiple c...
- Patent number 6,363,357
- Issue date Mar 26, 2002
- Pitney-Bowes, Inc.
- Nathan Rosenberg
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cellular telephone authentication system using a digital certificate
- Patent number 5,884,158
- Issue date Mar 16, 1999
- Pitney Bowes Inc.
- Frederick W. Ryan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Metered payment cellular telephone communication system
- Patent number 5,812,945
- Issue date Sep 22, 1998
- Pitney Bowes Inc.
- Gary G. Hansen
- G06 - COMPUTING CALCULATING COUNTING