Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4620601 | Well drilling tool with diamond thrust bearings | — | 1986-11-04 |
| 4480510 | Powered ratchet wrench | Thomas Aparicio, Jr., Ron Graham | 1984-11-06 |
| 4468138 | Manufacture of diamond bearings | — | 1984-08-28 |
| 4410054 | Well drilling tool with diamond radial/thrust bearings | Thomas Aparicio, Jr. | 1983-10-18 |
| 4324299 | Downhole drilling motor with pressure balanced bearing seals | — | 1982-04-13 |