Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11171580 | Brake system and controller for use with a wellhead direct drive | Al Duerr, Aaron Brassard, Wray Sparling | 2021-11-09 |
| 10221633 | Sucker rod shear couplers | Arnold Wollmann, Aaron Brassard, Wray Sparling | 2019-03-05 |
| 4644785 | Hinged strain cell mounting apparatus | — | 1987-02-24 |