Kauffman; Marc
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kauffman; Marc.The latest application filed is for "method and apparatus for controlling access to digital signals".
- Kauffman; Marc - Ft. Washington PA
- Kauffman; Marc - Cheltenham PA
- Kauffman; Marc - Elkins Park PA
| Patent | Date |
|---|---|
| Method and apparatus for controlling access to digital signals Grant 5,504,816 - Hamilton , et al. April 2, 1 | 1996-04-02 |
| Apparatus for selective distribution of messages over a communications network Grant 5,260,778 - Kauffman , et al. November 9, 1 | 1993-11-09 |
| Frequency agile security apparatus Grant 4,494,111 - Rocci , et al. January 15, 1 | 1985-01-15 |
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