Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10676995 | Drill stem element with fluid activation zone | Christophe Rohart | 2020-06-09 |
| 10202810 | Drill-string liner element furnished with an improved hardbanding layer | — | 2019-02-12 |