Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5144597 | Low-frequency hydrophone and sonar array including such hydrophones | Michel Lagier, Jena-Pierre Besombes | 1992-09-01 |
| 4839872 | Geophone with a sensitive element made of piezoelectric polymer | Didier Thollon, Jean-Georges Malcor | 1989-06-13 |
| 4547870 | Velocity hydrophone | Charles Maerfeld, Michel Josserand | 1985-10-15 |