Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10746328 | Breech lock coupling | Stephen John Walker | 2020-08-18 |
| 9957768 | Subsea pressure reduction system | Johannes Van Wijk, Melvyn F. Whitby, Edward C. Gaude | 2018-05-01 |
| 9874064 | Shape memory alloy powered hydraulic accumulator | Chris Kocurek, Gangbing Song | 2018-01-23 |
| 9803447 | Asymmetrical button for ram-type blowout preventers | Johnny E. Jurena, Charles E. Gibbs, Steven F. Shimonek | 2017-10-31 |
| 9422782 | Control pod for blowout preventer system | Mac M. Kennedy, Edward C. Gaude | 2016-08-23 |
| 9291020 | Blowout preventer system with three control pods | Mac M. Kennedy, Edward C. Gaude | 2016-03-22 |
| 9267335 | Breech lock coupling | Stephen John Walker | 2016-02-23 |
| 9140090 | Subsea pressure reduction system | Johannes Van Wijk, Melvyn F. Whitby, Edward C. Gaude | 2015-09-22 |
| 9127696 | Shape memory alloy powered hydraulic accumulator | Chris Kocurek, Gangbing Song | 2015-09-08 |
| 9068427 | Asymmetrical button for ram-type blowout preventers | Johnny E. Jurena, Charles E. Gibbs, Steven F. Shimonek | 2015-06-30 |
| 8944403 | Blowout preventer with pressure-isolated operating piston assembly | Johnny E. Jurena, Charles E. Gibbs, Steven F. Shimonek | 2015-02-03 |
| 8640775 | Multi-deployable subsea stack system | Johnnie E. Kotrla, Melvyn F. Whitby, Glenn J. Chiasson | 2014-02-04 |
| 8365830 | Multi-deployable subsea stack system | Johnnie E. Kotrla, Melvyn F. Whitby, Glenn J. Chiasson | 2013-02-05 |
| 7921917 | Multi-deployable subsea stack system | Johnnie E. Kotrla, Melvyn F. Whitby, Glenn J. Chiasson | 2011-04-12 |
| 7637474 | Fluid saving blowout preventer operator system | Melvyn F. Whitby, John T. Mangan | 2009-12-29 |
| 7338027 | Fluid saving blowout preventer operator system | Melvyn F. Whitby, John T. Mangan | 2008-03-04 |
| 7270190 | Variable size coil tubing gripping elements | Donald L. Jones | 2007-09-18 |
| 6974135 | Variable bore ram | Jeffrey Thomas Melancon | 2005-12-13 |
| 6843463 | Pressure regulated slip ram on a coil tubing blowout preventer | Perry Lee McClanahan | 2005-01-18 |
| 6484808 | Stripper/packer | Donald L. Jones, Richard M. Ward | 2002-11-26 |
| 6164619 | Bi-directional sealing ram | Denzal Wayne Van Winkle | 2000-12-26 |
| 5294088 | Variable bore packer for a ram-type blowout preventer | Eric G. Childs | 1994-03-15 |
| 5005802 | Variable bore packer for a ram type blowout preventer | Bolie C. Williams, III, Eric G. Childs, Gary R. Schaeper | 1991-04-09 |