Inventor · disambiguated record
David J. Mcwhorter
Also filed as: MCWHORTER DAVID · MCWHORTER DAVID J
23 granted patents·2 pending applications·398 citations·filing 1990–2016
96Inventor score
Top patents by PatentIndex Score
25 records- 0194US7921917B2Multi-deployable subsea stack systemCAMERON INT CORP·Filed 2008·Granted Apr 12, 2011·50 cites·14 claims
- 0291US9291020B2Blowout preventer system with three control podsCAMERON INT CORP·Filed 2015·Granted Mar 22, 2016·8 cites·10 claims
- 0391US8944403B2Blowout preventer with pressure-isolated operating piston assemblyJURENA JOHNNY E·Filed 2012·Granted Feb 3, 2015·14 cites·12 claims
- 0491US8640775B2Multi-deployable subsea stack systemCAMERON INT CORP·Filed 2013·Granted Feb 4, 2014·13 cites·20 claims
- 0589US9422782B2Control pod for blowout preventer systemCAMERON INT CORP·Filed 2016·Granted Aug 23, 2016·6 cites·10 claims
- 0688US9140090B2Subsea pressure reduction systemCAMERON INT CORP·Filed 2012·Granted Sep 22, 2015·11 cites·8 claims
- 0786US8365830B2Multi-deployable subsea stack systemCAMERON INT CORP·Filed 2011·Granted Feb 5, 2013·8 cites·11 claims
- 0885US9957768B2Subsea pressure reduction systemCAMERON INT CORP·Filed 2015·Granted May 1, 2018·4 cites·26 claims
- 0981US7270190B2Variable size coil tubing gripping elementsVARCO I P·Filed 2005·Granted Sep 18, 2007·23 cites·6 claims
- 1076US10746328B2Breech lock couplingCAMERON INT CORP·Filed 2016·Granted Aug 18, 2020·2 cites·16 claims
- 1174US7338027B1Fluid saving blowout preventer operator systemCAMERON INT CORP·Filed 2006·Granted Mar 4, 2008·13 cites·18 claims
- 1270US5294088AVariable bore packer for a ram-type blowout preventerCOOPER IND INC·Filed 1992·Granted Mar 15, 1994·52 cites·20 claims
- 1369US6164619ABi-directional sealing ramTUBOSCOPE I P INC·Filed 1999·Granted Dec 26, 2000·56 cites·9 claims
- 1466US6843463B1Pressure regulated slip ram on a coil tubing blowout preventerVARCO INT·Filed 2002·Granted Jan 18, 2005·35 cites·13 claims
- 1565US6484808B2Stripper/packerVARCO INT·Filed 2000·Granted Nov 26, 2002·31 cites·14 claims
- 1664US9068427B2Asymmetrical button for ram-type blowout preventersJURENA JOHNNY E·Filed 2012·Granted Jun 30, 2015·2 cites·19 claims
- 1763US9803447B2Asymmetrical button for ram-type blowout preventersCAMERON INT CORP·Filed 2015·Granted Oct 31, 2017·1 cites·17 claims
- 1861US6974135B2Variable bore ramVARCO INT·Filed 2004·Granted Dec 13, 2005·25 cites·7 claims
- 1958US9267335B2Breech lock couplingWALKER STEPHEN JOHN·Filed 2009·Granted Feb 23, 2016·6 cites·38 claims
- 2058US5005802AVariable bore packer for a ram type blowout preventerCOOPER IND INC·Filed 1990·Granted Apr 9, 1991·34 cites·4 claims
- 2154US9127696B2Shape memory alloy powered hydraulic accumulatorKOCUREK CHRIS·Filed 2009·Granted Sep 8, 2015·4 cites·22 claims
- 2250US9874064B2Shape memory alloy powered hydraulic accumulatorUNIV HOUSTON·Filed 2015·Granted Jan 23, 2018·0 cites·23 claims
- 2345US2015144814A1Blowout preventer with pressure-isolated operating piston assemblyJURENA JOHNNY E·Filed 2015·Application pending·0 cites
- 2443US7637474B2Fluid saving blowout preventer operator systemCAMERON INT CORP·Filed 2007·Granted Dec 29, 2009·0 cites·8 claims
- 2537US2006076526A1Anodic Protective Seal in a Blowout PreventerVARCO INT·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →