Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6951082 | Drilling rig with torque carrier | Mark E. Mattock | 2005-10-04 |
| 6935440 | Service rig with torque carrier | Vladimir Walter Lacika | 2005-08-30 |
| 5367800 | Interchangeable display system | — | 1994-11-29 |