Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9803424 | Mud motor assembly | William Banning Vail, III, Tomislav Skerl | 2017-10-31 |
| 9611693 | Mud motor assembly | William Banning Vail, III, Tomislav Skerl | 2017-04-04 |
| 9587435 | Universal drilling and completion system | William Banning Vail, III, Robert L. Dekle, James E. Chitwood | 2017-03-07 |