Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9957771 | Blowout preventer status assembly | Andrew Jaffrey, Gerrit Kroesen | 2018-05-01 |
| 8978699 | Blowout preventer status assembly | Andrew Jaffrey, Gerrit Kroesen | 2015-03-17 |
| 7637474 | Fluid saving blowout preventer operator system | Melvyn F. Whitby, David J. McWhorter | 2009-12-29 |
| 7559523 | Dual-cylinder blowout preventer operator system | Melvyn F. Whitby | 2009-07-14 |
| 7533865 | Blowout preventer operator locking system | Melvyn F. Whitby | 2009-05-19 |
| 7374146 | Dual-cylinder blowout preventer operator system | Melvyn F. Whitby | 2008-05-20 |
| 7338027 | Fluid saving blowout preventer operator system | Melvyn F. Whitby, David J. McWhorter | 2008-03-04 |
| 7300033 | Blowout preventer operator locking system | Melvyn F. Whitby | 2007-11-27 |