Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6917646 | Circuit for exchanging communications over a transmission line | Alain Chianale | 2005-07-12 |
| 4896352 | Telephone set circuit including an overvoltage protection | — | 1990-01-23 |