Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6708275 | Process and device for transmitting confidential connection establishment and service information between subscriber terminals and one or more digital exchanges | — | 2004-03-16 |
| 6317830 | Process and device for authenticating subscribers to digital exchanges | — | 2001-11-13 |