Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7963572 | Differential pitch hammerless connection with hydraulic driving mechanism | Brad Robert Bull, Leonard R. Case, Ivan Blanco | 2011-06-21 |
| 7563076 | Variable rate pumping system | John Dexter Brunet, David Mark Stribling, James D. Roach, Stephen F. Crain | 2009-07-21 |
| 7059424 | Apparatus for rotating a threaded closure device | Kenneth G. Neal, Paul A. Brown, William D. Kendrick, Brad Robert Bull | 2006-06-13 |