Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6175620 | Compatibility between a telephone service with server and a calling line identification service | Thierry Rouge | 2001-01-16 |
| 6005929 | Method of providing services to subscribers of a telephone network | — | 1999-12-21 |
| 4910773 | Method of dispatching secret keys to security modules and user cards in a data processing network | Michel Hazard, Jean-Michel Desjardins | 1990-03-20 |
| 4825052 | Method and apparatus for certifying services obtained using a portable carrier such as a memory card | Michel Ugon | 1989-04-25 |