Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7717182 | Artificial lift with additional gas assist | Bryan V. Butler | 2010-05-18 |
| 7063161 | Artificial lift with additional gas assist | Bryan V. Butler | 2006-06-20 |
| 5593231 | Hydrodynamic bearing | — | 1997-01-14 |
| 4629338 | Seal and bearing apparatus for bits | — | 1986-12-16 |
| 4569601 | Wound wire bearing | — | 1986-02-11 |
| 4514098 | Wound wire bearing | — | 1985-04-30 |
| 4441566 | Drill bit with dispersed cutter inserts | Rudolf Carl Pessier, Billy E. Baker | 1984-04-10 |
| 4386663 | Cooled journal bearing | — | 1983-06-07 |