Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136825 | Top drive | Randy Pyrch, William R. Slocum | 2021-10-05 |
| 10995550 | Wellbore rig top drive | Ernesto Rivera, Tommy Vu, Randy Pyrch | 2021-05-04 |
| 10941629 | Rotating control device having a locking block system | Tommy Vu, Brian Ellis | 2021-03-09 |