Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7129471 | Corrosion detecting device | Didier Frot, Xavier Longaygue | 2006-10-31 |
| 4562309 | Telephone circuit controlled by a 2 wire - 4 wire transmission integrated circuit microprocessor with line current emergency supply | Michel Le Creff, Francois Buhagiar | 1985-12-31 |