Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9458682 | Coiled tubing injector with limited slip chains | David W. McCulloch, Timothy S. Steffenhagen, William G. Stewart | 2016-10-04 |
| 9236781 | Planetary gear assembly | — | 2016-01-12 |