Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5365769 | Method for verifying the correct operation of a safety valve of an oil well | — | 1994-11-22 |
| 5217071 | Production tube with integrated hydraulic line | Jean Boulet | 1993-06-08 |
| 5158140 | Apparatus and method for cleaning out an underground well | — | 1992-10-27 |
| 4494602 | Electrical connection device for an underwater well head | Andre Capdeboscq | 1985-01-22 |