Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9441418 | Drill stem component comprising a movable coupler and a pressure chamber | Vincent Buchoud, Pierre R. Mesnil | 2016-09-13 |
| 9325084 | Annular coupler for drill stem component | Franck Moukanda Mbango, Roland Amiel | 2016-04-26 |