Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11171580 | Brake system and controller for use with a wellhead direct drive | Al Duerr, John Doyle, Wray Sparling | 2021-11-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11171580 | Brake system and controller for use with a wellhead direct drive | Al Duerr, John Doyle, Wray Sparling | 2021-11-09 |