Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8518130 | Relating to fuels | Martin Tom Croft, George Robert Lee, Richard John Price | 2013-08-27 |
| 4823877 | Open hole pipe recovery circulation valve | Daniel A. Hadley | 1989-04-25 |
| 4685520 | Open hole pipe recovery circulation valve | — | 1987-08-11 |