Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768616 | Acoustic filter | Philippe Richard, Jean-Charles Papillon, Alain Guyot | 1988-09-06 |
| 4638838 | Hydropneumatic accumulator | Philippe Richard, Jean-Charles Papillon, Alain Guyot | 1987-01-27 |