Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE34435 | Whirl resistant bit | Tommy M. Warren | 1993-11-09 |
| 5131478 | Low friction subterranean drill bit and related methods | Tommy M. Warren, L. Allen Sinor, Suzanne M. Behr | 1992-07-21 |
| 5042596 | Imbalance compensated drill bit | Tommy M. Warren | 1991-08-27 |
| 5010789 | Method of making imbalanced compensated drill bit | Tommy M. Warren | 1991-04-30 |
| 4982802 | Method for stabilizing a rotary drill string and drill bit | Tommy M. Warren, Warren J. Winters | 1991-01-08 |
| 4948925 | Apparatus and method for rotationally orienting a fluid conducting conduit | Warren J. Winters, Michael Burton, Tommy M. Warren | 1990-08-14 |
| 4932484 | Whirl resistant bit | Tommy M. Warren | 1990-06-12 |
| 4721172 | Apparatus for controlling the force applied to a drill bit while drilling | Tommy M. Warren, Warren J. Winters | 1988-01-26 |
| 4705117 | Method and apparatus for reducing drill bit wear | Tommy M. Warren, Warren J. Winters | 1987-11-10 |
| 4660656 | Method and apparatus for controlling the rotational torque of a drill bit | Tommy M. Warren, Warren J. Winters | 1987-04-28 |
| 4655303 | Drill bit | Warren J. Winters, Tommy M. Warren | 1987-04-07 |