Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11248418 | Drilling motor interior valve | David A. Barker | 2022-02-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11248418 | Drilling motor interior valve | David A. Barker | 2022-02-15 |