Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9120619 | Modular above-ground tank | Jonathan Hoopes, Robert W. Sloan, III | 2015-09-01 |
| 4366650 | Support arrangement including base support means and elevatable support means to transport a drawworks and drilling mast supported thereon and for positioning at a drilling location | — | 1983-01-04 |
| 4221088 | Low lift, elevatable high floor drilling mast and substructure arrangement therefor | — | 1980-09-09 |