Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881605 | Stabilizing and drilling apparatus and method | Tommy M. Warren, Jame F. Brett | 1989-11-21 |
| 4871037 | Excavation apparatus, system and method | Tommy M. Warren | 1989-10-03 |
| 4862974 | Downhole drilling assembly, apparatus and method utilizing drilling motor and stabilizer | Tommy M. Warren, James F. Brett | 1989-09-05 |
| 4854397 | System for directional drilling and related method of use | Tommy M. Warren | 1989-08-08 |
| 4807717 | Method of loggging an inclined wellbore | Johnie L. Landreth | 1989-02-28 |