Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6625441 | Telephony system with a key for accessing multiple answering machines or mailboxes | Jean-Paul Coupigny | 2003-09-23 |
| 6370388 | Telephony device transmitting divided messages | — | 2002-04-09 |
| 6240300 | Telephony device comprising a base station and at least a subscriber unit and method for connecting to such a telephony device | — | 2001-05-29 |
| 6148214 | Telephone using service messages for identification signals | — | 2000-11-14 |