Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5168933 | Combination hydraulic tubing hanger and chemical injection sub | Paul L. Dodd | 1992-12-08 |
| 4690216 | Formation fluid sampler | — | 1987-09-01 |
| 4688640 | Abandoning offshore well | — | 1987-08-25 |
| 4655283 | Apparatus for perforating and producing a well | — | 1987-04-07 |