Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6679330 | Tubing hanger with ball valve | Dewey Craig Compton | 2004-01-20 |
| 6675900 | Crossover tree system | David Baskett | 2004-01-13 |
| 6644411 | Tubing hanger with flapper valve | Dewey Craig Compton | 2003-11-11 |
| 4852611 | Wellhead connection of hydraulic control lines | Robert E. Hart, William S. Cowan | 1989-08-01 |