Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10145184 | Anti-friction device of drilling elements | — | 2018-12-04 |
| 10113379 | Method of assembly of a string of elements for deepwater drilling and ultradeep obstruction element and corresponding use of the same in said drilling string | — | 2018-10-30 |
| 9976366 | Valve assembly for drilling mud circulation and associated drilling elements | — | 2018-05-22 |