Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4194568 | Disconnectable riser columns for under water oil wells | Olivier Roche, Michel B. Viallard | 1980-03-25 |
| 4188084 | Underwater electrical connectors | Rene Grappe | 1980-02-12 |