Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6961220 | Laser welded head drum for VCR | Michel Perrot | 2005-11-01 |
| 6922315 | Head drum with magnetic mounting of rotary transformer | Jean-Pierre Collin, Michel Perrot | 2005-07-26 |
| 6690334 | Devices for sending and receiving electromagnetic waves | Jean-Francois Pintos, Ali Louzir, Patrice Hirtzlin | 2004-02-10 |
| 6595452 | Cable reel and electromagnetic wave communication device equipped with such a reel | Patrice Hirtzlin | 2003-07-22 |