Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4497510 | Connection-disconnection device between one rigid pipe, inside well-tubing connected to a base by an articulated coupling, and another rigid pipe fixed to this base | Jean-Lucien Mourlevat, Jacques de Saint-Palais | 1985-02-05 |
| 4489472 | Connection-disconnection device between one rigid pipe, inside well-tubing connected to a base by an articulated coupling, and another rigid pipe fixed to this base | Jean-Lucien Mourlevat, Jacques de Saint-Palais | 1984-12-25 |