Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7975761 | Method and device with biasing force for sealing a well | Michael Wayne Berckenhoff, Eugene Charles Chauviere, III | 2011-07-12 |
| 7703739 | Ram BOP shear device | Robert Arnold Judge | 2010-04-27 |
| 7357187 | BOP conversion apparatus | — | 2008-04-15 |
| 7234530 | Ram BOP shear device | — | 2007-06-26 |