Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7314083 | Slow rotation fluid jetting tool for cleaning a well bore | — | 2008-01-01 |
| 6742605 | Percussion tool for generic downhole fluid motors | — | 2004-06-01 |
| 6520271 | Fluid powered rotary drilling assembly | — | 2003-02-18 |
| 6315063 | Reciprocating rotary drilling motor | — | 2001-11-13 |
| 4940097 | Fluid powered rotary percussion drill with formation disintegration inserts | — | 1990-07-10 |
| 4502552 | Vibratory rotary drilling tool | — | 1985-03-05 |
| 4254839 | Radial force anti-extrusion device for sealed drill string unit | Ricky K. Schpok | 1981-03-10 |