Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4543998 | Protector clamp for well control lines | — | 1985-10-01 |
| 4338046 | Bumper ring with relief groove | — | 1982-07-06 |
| 4273473 | Shock absorbing column | Jay W. Jackson | 1981-06-16 |
| 4266578 | Drill pipe protector | Jack W. Swain, Tom C. Waldrop | 1981-05-12 |