Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5566758 | Method and apparatus for drilling wells in to geothermal formations | — | 1996-10-22 |
| 4541608 | High pressure shut-off valve | Billy L. Redmon | 1985-09-17 |
| 4512410 | Geothermal expansion wellhead system | — | 1985-04-23 |
| 4499919 | Valve | — | 1985-02-19 |
| 4446887 | Variable high pressure choke | Billy L. Redmon | 1984-05-08 |
| 4433827 | High pressure shut-off valve | Billy L. Redmon | 1984-02-28 |
| 4304261 | Valve | — | 1981-12-08 |