Assignee
KOTRLA JOHNNIE E
US·5 granted patents·65 citations·filing 2009–2012
Top patents by PatentIndex Score
5 records- 0194US8746345B2BOP stack with a universal intervention interfaceKOTRLA JOHNNIE E·Filed 2010·Granted Jun 10, 2014·23 cites·20 claims
- 0290US9033049B2Blowout preventer shut-in assembly of last resortKOTRLA JOHNNIE E·Filed 2011·Granted May 19, 2015·19 cites·29 claims
- 0387US8136598B2Subsea connection apparatus for a surface blowout preventer stackKOTRLA JOHNNIE E·Filed 2010·Granted Mar 20, 2012·10 cites·12 claims
- 0474US8833465B2Subsea differential-area accumulatorKOTRLA JOHNNIE E·Filed 2009·Granted Sep 16, 2014·13 cites·17 claims
- 0547US8695691B2Subsea connection apparatus for a surface blowout preventer stackKOTRLA JOHNNIE E·Filed 2012·Granted Apr 15, 2014·0 cites·17 claims
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