Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6176129 | Method and apparatus for acquiring data in a hydrocarbon well | Gilles Cantin, Philippe Parent, Patrick Vessereau | 2001-01-23 |
| 6170570 | Sinker bar for cable-operated well apparatus | Jean-Pierre Chyzak, Eric Veignat | 2001-01-09 |