Katy, Texas
United States
11
2015-04-16
The entities that hold a legal rights for patent applications filed by inventor Kotrla Johnnie E.:
Johnnie E. Kotrla from Katy, US has applied for patents for these inventions. The list has both pending applications and granted patents:
Subsea differential-area accumulator
#2 | 2014-12-11Blowout preventer shut-in assembly of last resort
#3 | 2014-08-21BOP stack with a universal intervention interface
#4 | 2013-05-23Multi-deployable subsea stack system
#5 | 2013-05-16Blowout preventer shut-in assembly of last resort
#6 | 2012-08-09Subsea connection apparatus for a surface blowout preventer stack
#7 | 2012-06-14BOP stack with a universal intervention interface
#8 | 2011-06-30Multi-deployable subsea stack system
#9 | 2011-06-23Subsea differential-area accumulator
#10 | 2010-08-24Subsea connection apparatus for a surface blowout preventer stack
#11 | 2008-12-11Multi-deployable subsea stack system
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