Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4456081 | Hydraulic drilling jar | — | 1984-06-26 |
| 4417301 | Method and apparatus for electric fish trawling | — | 1983-11-22 |
| 4269395 | Portable hydraulic rig for performing workover, drilling and other operations on a well | Harold Lee | 1981-05-26 |