Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7121350 | Torque anchor | Fritz Jagert | 2006-10-17 |
| 6155346 | Downhole anchor | — | 2000-12-05 |
| 6105670 | Injection/isolation tool | Robert G. Klos, Dale W. Peterson, Charles E. Peppard, Kim W. Kappler, David Hill | 2000-08-22 |
| 6085837 | Downhole fluid disposal tool and method | Roland Massinon, David Hill | 2000-07-11 |
| 6073693 | Downhole anchor | — | 2000-06-13 |
| 4897189 | Blood purification apparatus | Roger N. Greenwood, James E. Tattershall, Rodney V. Barrett | 1990-01-30 |