Inventor · disambiguated record
David Cain
Also filed as: CAIN DAVID · CAIN DAVID E · CAIN DAVID EARL
43 granted patents·4 pending applications·781 citations·filing 1979–2018
98Inventor score
Top patents by PatentIndex Score
47 records- 0191US10001216B2Metal end cap sealCAMERON INT CORP·Filed 2016·Granted Jun 19, 2018·8 cites·21 claims
- 0291US8960307B2Wellhead system with gasket sealCAMERON INT CORP·Filed 2013·Granted Feb 24, 2015·12 cites·20 claims
- 0391US6401747B1Gate valveFMC CORP·Filed 2000·Granted Jun 11, 2002·49 cites·18 claims
- 0489US9187973B2Offshore well system with a subsea pressure control system movable with a remotely operated vehicleCAMERON INT CORP·Filed 2013·Granted Nov 17, 2015·12 cites·19 claims
- 0584US4299118AViscometerHALLIBURTON SERVICES·Filed 1979·Granted Nov 10, 1981·41 cites·36 claims
- 0683US9133677B2Wellhead system with gasket sealCAMERON INT CORP·Filed 2015·Granted Sep 15, 2015·3 cites·10 claims
- 0783US5775422ATree test plugFMC CORP·Filed 1996·Granted Jul 7, 1998·119 cites·2 claims
- 0881US9574426B2Offshore well system with a subsea pressure control system movable with a remotely operated vehicleCAMERON INT CORP·Filed 2015·Granted Feb 21, 2017·3 cites·19 claims
- 0981US6918574B2Reduced torque gate valve with roller screwFMC TECHNOLOGIES·Filed 2002·Granted Jul 19, 2005·27 cites·15 claims
- 1080US10151167B2Wellhead system with gasket sealCAMERON INT CORP·Filed 2016·Granted Dec 11, 2018·2 cites·17 claims
- 1180US9416614B2Wellhead system with gasket sealCAMERON INT CORP·Filed 2015·Granted Aug 16, 2016·2 cites·20 claims
- 1280US7992840B2Pressure rated oil field gate valveT 3 PROPERTY HOLDINGS INC·Filed 2008·Granted Aug 9, 2011·15 cites·36 claims
- 1380US6510895B1Energized sealing cartridge for annulus sealing between tubular well componentsFMC TECHNOLOGIES·Filed 2000·Granted Jan 28, 2003·63 cites·20 claims
- 1477US8196649B2Thru diverter wellhead with direct connecting downhole controlALLEN ROBERT STEVEN·Filed 2008·Granted Jun 12, 2012·14 cites·46 claims
- 1577US4397177AHydraulic filter pressHALLIBURTON CO·Filed 1981·Granted Aug 9, 1983·20 cites·28 claims
- 1676US9133670B2System for conveying fluid from an offshore wellCAIN DAVID·Filed 2012·Granted Sep 15, 2015·4 cites·27 claims
- 1770US10364635B2Adjustable isolation sleeveCAMERON INT CORP·Filed 2014·Granted Jul 30, 2019·3 cites·13 claims
- 1869US5996695AMethod and apparatus for sealing between casing and wellhead connector structureFMC CORP·Filed 1999·Granted Dec 7, 1999·58 cites·16 claims
- 1968US5031695AWell casing hanger with wide temperature range sealFMC CORP·Filed 1990·Granted Jul 16, 1991·54 cites·8 claims
- 2067USD271570SHigh temperature, high pressure filter press for testing drilling fluids or similar apparatusHALLIBURTON CO·Filed 1981·Granted Nov 29, 1983·10 cites·1 claims
- 2166US10196879B2Floating structure and riser systems for drilling and productionCAMERON INT CORP·Filed 2015·Granted Feb 5, 2019·1 cites·21 claims
- 2265US11261722B2Systems and methods for monitoring components of a wellBP CORP NORTH AMERICA INC·Filed 2018·Granted Mar 1, 2022·2 cites·23 claims
- 2364US5791657ASeals containing composite non-extrusion springsFMC CORP·Filed 1997·Granted Aug 11, 1998·57 cites·2 claims
- 2460US6923423B2Small bore gate valveFMC TECHNOLOGIES·Filed 2002·Granted Aug 2, 2005·11 cites·14 claims
- 2559US4374474APressurized density measuring apparatusHALLIBURTON CO·Filed 1981·Granted Feb 22, 1983·17 cites·29 claims
- 2656USD440283SGate valveFMC CORP·Filed 2000·Granted Apr 10, 2001·10 cites·1 claims
- 2755US8157006B2Telescopic fracturing isolation sleeveKOLEILAT BASHIR·Filed 2009·Granted Apr 17, 2012·8 cites·6 claims
- 2854USD270718SField hand pump for use in the measuring of properties of drilling mud, or the likeHALLIBURTON CO·Filed 1981·Granted Sep 27, 1983·6 cites·1 claims
- 2953US9500046B2System for conveying fluid from an offshore wellCAMERON INT CORP·Filed 2015·Granted Nov 22, 2016·0 cites·21 claims
- 3052US10329852B2Offshore well drilling system with nested drilling risersCAMERON INT CORP·Filed 2015·Granted Jun 25, 2019·0 cites·19 claims
- 3152US5782297ARetrieval tool for back pressure valve and tree test plugFMC CORP·Filed 1996·Granted Jul 21, 1998·34 cites·3 claims
- 3250US9097098B2Floating structure and riser systems for drilling and productionCAMERON INT CORP·Filed 2013·Granted Aug 4, 2015·0 cites·21 claims
- 3349US9181753B2Offshore well drilling system with nested drilling risersCAMERON INT CORP·Filed 2012·Granted Nov 10, 2015·0 cites·21 claims
- 3448US2015337514A1Offshore System with Subsea RiserCAMERON INT CORP·Filed 2015·Application pending·0 cites
- 3548US2013230358A1Offshore System with Subsea RiserCAMERON INT CORP·Filed 2013·Application pending·0 cites
- 3647US6520207B2Combination poppet and gate valveFMC TECHNOLOGIES·Filed 2001·Granted Feb 18, 2003·13 cites·21 claims
- 3747USD274227SHydraulic filter press for pressing liquid from a drilling mud or the likeHALLIBURTON CO·Filed 1981·Granted Jun 12, 1984·4 cites·1 claims
- 3847USD262693SDensity measuring balanceHALLIBURTON SERVICES·Filed 1980·Granted Jan 19, 1982·4 cites·1 claims
- 3945US5755287ASealing assembly for subsea wellheadsFMC CORP·Filed 1996·Granted May 26, 1998·27 cites·2 claims
- 4045US2011100646A1Downhole Running Tool and MethodT 3 PROPERTY HOLDINGS INC·Filed 2010·Application pending·0 cites
- 4144US5730218ATool protection guide with energy absorbing bumperFMC CORP·Filed 1996·Granted Mar 24, 1998·19 cites·3 claims
- 4239US4848777APressure energized/pressure intensified casing sealFMC CORP·Filed 1987·Granted Jul 18, 1989·18 cites·2 claims
- 4338US5474124AWellhead retrieval tool assemblyFiled 1994·Granted Dec 12, 1995·15 cites·7 claims
- 4438US2002117211A1Gate valveFiled 2002·Application pending·0 cites
- 4537US4321829ADensity measuring apparatusHALLIBURTON CO·Filed 1980·Granted Mar 30, 1982·6 cites·3 claims
- 4634USD268820SPressurized density measuring apparatusHALLIBURTON CO·Filed 1981·Granted May 3, 1983·1 cites·1 claims
- 4733US5896925ATool protection guideFMC CORP·Filed 1997·Granted Apr 27, 1999·9 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →