Kotrla; Johnnie E.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kotrla; Johnnie E..The latest application filed is for "subsea differential-area accumulator".
- Kotrla; Johnnie E. - Katy TX
- Kotrla; Johnnie E. - Houston TX
| Patent | Date |
|---|---|
| Blowout preventer shut-in assembly of last resort Grant 9,976,375 - Kotrla , et al. May 22, 2 | 2018-05-22 |
| Subsea differential-area accumulator Grant 9,303,479 - Kotrla , et al. April 5, 2 | 2016-04-05 |
| BOP stack with a universal intervention interface Grant 9,115,563 - Kotrla , et al. August 25, 2 | 2015-08-25 |
| Subsea connection apparatus for a surface blowout preventer stack Grant 9,085,951 - Kotrla , et al. July 21, 2 | 2015-07-21 |
| Blowout preventer shut-in assembly of last resort Grant 9,033,049 - Kotrla , et al. May 19, 2 | 2015-05-19 |
| Subsea Differential-Area Accumulator App 20150101822 - Kotrla; Johnnie E. ; et al. | 2015-04-16 |
| Blowout Preventer Shut-In Assembly of Last Resort App 20140360731 - Kotrla; Johnnie E. ; et al. | 2014-12-11 |
| Subsea differential-area accumulator Grant 8,833,465 - Kotrla , et al. September 16, 2 | 2014-09-16 |
| BOP Stack with a Universal Intervention Interface App 20140231088 - Kotrla; Johnnie E. ; et al. | 2014-08-21 |
| Subsea Connection Apparatus for a Surface Blowout Preventer Stack App 20140190702 - Kotrla; Johnnie E. ; et al. | 2014-07-10 |
| BOP stack with a universal intervention interface Grant 8,746,345 - Kotrla , et al. June 10, 2 | 2014-06-10 |
| Subsea connection apparatus for a surface blowout preventer stack Grant 8,695,691 - Kotrla , et al. April 15, 2 | 2014-04-15 |
| Multi-deployable subsea stack system Grant 8,640,775 - Kotrla , et al. February 4, 2 | 2014-02-04 |
| Multi-Deployable Subsea Stack System App 20130126764 - Kotrla; Johnnie E. ; et al. | 2013-05-23 |
| Blowout Preventer Shut-In Assembly of Last Resort App 20130118755 - Kotrla; Johnnie E. ; et al. | 2013-05-16 |
| Multi-deployable subsea stack system Grant 8,365,830 - Kotrla , et al. February 5, 2 | 2013-02-05 |
| Subsea Connection Apparatus for a Surface Blowout Preventer Stack App 20120199360 - Kotrla; Johnnie E. ; et al. | 2012-08-09 |
| BOP Stack with a Universal Intervention Interface App 20120145406 - Kotrla; Johnnie E. ; et al. | 2012-06-14 |
| Subsea connection apparatus for a surface blowout preventer stack Grant 8,136,598 - Kotrla , et al. March 20, 2 | 2012-03-20 |
| Multi-Deployable Subsea Stack System App 20110155386 - Kotrla; Johnnie E. ; et al. | 2011-06-30 |
| Subsea Differential-Area Accumulator App 20110147002 - Kotrla; Johnnie E. ; et al. | 2011-06-23 |
| Multi-deployable subsea stack system Grant 7,921,917 - Kotrla , et al. April 12, 2 | 2011-04-12 |
| Subsea Connection Apparatus for a Surface Blowout Preventer Stack App 20100288504 - Kotrla; Johnnie E. ; et al. | 2010-11-18 |
| Subsea connection apparatus for a surface blowout preventer stack Grant 7,779,917 - Kotrla , et al. August 24, 2 | 2010-08-24 |
| Multi-Deployable Subsea Stack System App 20080302536 - Kotrla; Johnnie E. ; et al. | 2008-12-11 |
| Subsea connection apparatus for a surface blowout preventer stack App 20040099420 - Kotrla, Johnnie E. ; et al. | 2004-05-27 |
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