Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9169708 | Method of in situ repair of a wellhead base flange | — | 2015-10-27 |
| 4884633 | A hydraulic remotely-controlled bleeder valve for a well head | Jean-Yves Le Gac, Philippe Majewski | 1989-12-05 |
| 4848401 | Isolation chamber valve | Jean-Yves Le Gac | 1989-07-18 |