Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7730957 | Well tool with line and installation method | Ronald W. McGregor | 2010-06-08 |
| 4986727 | Pressure-operated oil and gas well swabbing device | — | 1991-01-22 |
| 4211293 | Variable orifice sleeve valve hydraulic jar tool | — | 1980-07-08 |
| 4210214 | Temperature compensating hydraulic jarring tool | — | 1980-07-01 |
| 4196782 | Temperature compensated sleeve valve hydraulic jar tool | — | 1980-04-08 |
| 4181186 | Sleeve valve hydraulic jar tool | — | 1980-01-01 |