Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4688828 | Tubing joint for corrosion protection | — | 1987-08-25 |
| 4550895 | Ram construction for oil well blow out preventer apparatus | — | 1985-11-05 |
| 4448255 | Rotary blowout preventer | Gary M. Oulrey | 1984-05-15 |