Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8002032 | Hydraulic overshot with removable setting and testing core | Martin Cenac | 2011-08-23 |
| 7472756 | Valve apparatus with seal assembly | — | 2009-01-06 |
| 7191843 | Valve apparatus with seal assembly | — | 2007-03-20 |