Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5363929 | Downhole fluid motor composite torque shaft | Jerry G. Williams, Monib M. Monib, Mamdouh M. Salama, David H. Schwartz | 1994-11-15 |
| 5219028 | Well casing and well casing method | James W. Martin | 1993-06-15 |
| 4890675 | Horizontal drilling through casing window | — | 1990-01-02 |
| 4843317 | Method and apparatus for measuring casing wall thickness using a flux generating coil with radial sensing coils and flux leakage sensing coils | — | 1989-06-27 |