Inventor · disambiguated record
Michael Wayne Berckenhoff
Also filed as: BERCKENHOFF MICHAEL W · BERCKENHOFF MICHAEL WAYNE
15 granted patents·1 pending application·180 citations·filing 2001–2023
93Inventor score
Top patents by PatentIndex Score
16 records- 0184US6554247B2Quick release blowout preventer bonnetHYDRIL CO·Filed 2001·Granted Apr 29, 2003·70 cites·56 claims
- 0283US7246666B2Mounts for blowout preventer bonnetsHYDRIL CO LP·Filed 2006·Granted Jul 24, 2007·15 cites·7 claims
- 0381US8230930B2Mounts for blowout preventer bonnets and methods of useHEMPHILL EDWARD RYAN·Filed 2010·Granted Jul 31, 2012·6 cites·18 claims
- 0477US7121348B2Mounts for blowout preventer bonnetsHYDRIL CO LP·Filed 2006·Granted Oct 17, 2006·10 cites·15 claims
- 0576US8702106B2Pressure energized radial sealBERCKENHOFF MICHAEL WAYNE·Filed 2006·Granted Apr 22, 2014·9 cites·8 claims
- 0673US7281586B2Mounts for blowout preventer bonnetsHYDRIL CO·Filed 2006·Granted Oct 16, 2007·8 cites·21 claims
- 0771US11933129B2Electrical drilling and production systems and methodsSCHLUMBERGER TECHNOLOGY CORP·Filed 2023·Granted Mar 19, 2024·0 cites·20 claims
- 0870US11429766B2Method to simulate bop shearingCAMERON INT CORP·Filed 2019·Granted Aug 30, 2022·1 cites·17 claims
- 0964US7975761B2Method and device with biasing force for sealing a wellHYDRIL USA MFG LLC·Filed 2008·Granted Jul 12, 2011·10 cites·23 claims
- 1063US7096960B2Mounts for blowout preventer bonnetsHYDRIL CO·Filed 2002·Granted Aug 29, 2006·16 cites·33 claims
- 1162US7802626B2Mounts for blowout preventer bonnets and methods of useHYDRIL USA MFG LLC·Filed 2007·Granted Sep 28, 2010·4 cites·22 claims
- 1260US6845959B2Quick release blowout preventer bonnetHYDRIL COMPANY L P·Filed 2003·Granted Jan 25, 2005·24 cites·3 claims
- 1357US7413019B2Mounts for blowout preventer bonnetsHYDRIL USA MFG LLC·Filed 2006·Granted Aug 19, 2008·5 cites·14 claims
- 1450US11739605B2Electrical drilling and production systems and methodsCAMERON TECH LTD·Filed 2017·Granted Aug 29, 2023·0 cites·14 claims
- 1539US7699554B2Removable seal carrier for blowout preventer bonnet assemblyHYDRIL USA MFG LLC·Filed 2003·Granted Apr 20, 2010·2 cites·7 claims
- 1637US2006278406A1Rod lock for ram blowout preventersJUDGE ROBERT A·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →