Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6961220 | Laser welded head drum for VCR | Philippe Berthaud | 2005-11-01 |
| 6922315 | Head drum with magnetic mounting of rotary transformer | Philippe Berthaud, Jean-Pierre Collin | 2005-07-26 |
| 4943691 | Low-voltage limiting circuit breaker with leaktight extinguishing chamber | Jean-Luc Mertz, Hubert Guerin, Patrick De Robertis | 1990-07-24 |
| 4518569 | Process for cleaning the inner walls of a reactor | Michel Jaccaud | 1985-05-21 |