Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10927615 | Drilling rig with a top drive system operable in a wellbore drilling mode, tripping mode, and bypassing mode | Ronny Lambertus Waltherus Nouwens, Joop Roodenburg | 2021-02-23 |