Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6558569 | Low viscosity functional fluids compositions | Tammy Tyler Shannon, Brian T. Keen, Pearl Crossen | 2003-05-06 |
| 5988299 | Automated oil rig servicing system | Louis E. Witte | 1999-11-23 |
| 5711382 | Automated oil rig servicing system | Louis E. Witte | 1998-01-27 |
| 4441403 | Aeration fan mounting system | — | 1984-04-10 |