Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659599 | Voice mail network and networking method | Robert Penfield, Stephen Gerard Reppucci | 1997-08-19 |
| 5493607 | Multi-system network addressing | Jose Capo, Robert Penfield, Anthony Deigh | 1996-02-20 |
| 5193110 | Integrated services platform for telephone communication system | Scott A. Jones, Amitava Mukherjee, Donald F. Picard, Richard E. Cohen | 1993-03-09 |