Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4576358 | Remotely operable safety valve | Danny K. Wolff | 1986-03-18 |
| 4550780 | Pressure operated safety valve with lock means | — | 1985-11-05 |
| 4319639 | Well safety system method | — | 1982-03-16 |
| 4310048 | Well safety system method and apparatus | — | 1982-01-12 |
| 4310051 | Well safety valve apparatus | — | 1982-01-12 |
| 4295523 | Well safety system method and apparatus | — | 1981-10-20 |
| 4293034 | Well safety system method and apparatus | — | 1981-10-06 |
| 4289205 | Well safety system method and apparatus | — | 1981-09-15 |
| 4284141 | Subsurface well apparatus and method | — | 1981-08-18 |
| 4260021 | Plug catcher tool | — | 1981-04-07 |
| 4256180 | Method of moving a through-the-flowline installed safety valve through a curved flow line | — | 1981-03-17 |