Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8356966 | Mobile oil field rig with air bearing transport | — | 2013-01-22 |
| 6045297 | Method and apparatus for drilling rig construction and mobilization | Ronald B. Tinkham | 2000-04-04 |
| 5838246 | Safety apparatus for oil drilling derrick | — | 1998-11-17 |