Inventor · disambiguated record
L. Murray Dallas
Also filed as: DALLAS L M · DALLAS L MURRAY · DALLAS MURRAY L
85 granted patents·3 pending applications·4,078 citations·filing 1988–2011
99Inventor score
Files withSTINGER WELLHEAD PROT INC44OIL STATES ENERGY SERVICES INC5MCGUIRE BOB4DALLAS L MURRAY3H W C ENERGY SERVICES INC2
Top patents by PatentIndex Score
88 records- 0197US6364024B1Blowout preventer protector and method of using sameFiled 2000·Granted Apr 2, 2002·227 cites·42 claims
- 0295US6491098B1Method and apparatus for perforating and stimulating oil wellsFiled 2000·Granted Dec 10, 2002·174 cites·24 claims
- 0394US7481239B2Gate valve with replaceable insertsSTINGER WELLHEAD PROT INC·Filed 2004·Granted Jan 27, 2009·38 cites·20 claims
- 0494US7237615B2Casing mandrel with well stimulation tool and tubing head spool for use with the casing mandrelSTINGER WELLHEAD PROT INC·Filed 2006·Granted Jul 3, 2007·45 cites·18 claims
- 0594US7125055B2Metal ring gasket for a threaded unionOIL STATES ENERGY SERVICES INC·Filed 2003·Granted Oct 24, 2006·62 cites·23 claims
- 0694US6817421B2Blowout preventer protector and method of using sameFiled 2003·Granted Nov 16, 2004·127 cites·23 claims
- 0794US6289993B1Blowout preventer protector and setting toolFiled 1999·Granted Sep 18, 2001·185 cites·32 claims
- 0893US7484776B2High-pressure threaded union with metal-to-metal seal, and metal ring gasket for sameSTINGER WELLHEAD PROT INC·Filed 2005·Granted Feb 3, 2009·22 cites·16 claims
- 0993US7267180B2Multi-lock adapters for independent screwed wellheads and methods of using sameSTINGER WELLHEAD PROT INC·Filed 2006·Granted Sep 11, 2007·36 cites·20 claims
- 1093US7204474B2High-pressure plug valveSTINGER WELLHEAD PROT INC·Filed 2004·Granted Apr 17, 2007·38 cites·27 claims
- 1193US6516891B1Dual string coil tubing injector assemblyFiled 2001·Granted Feb 11, 2003·129 cites·32 claims
- 1292US7946558B2High-pressure plug valveSTINGER WELLHEAD PROT INC·Filed 2010·Granted May 24, 2011·8 cites·20 claims
- 1392US7159652B2Drilling flange and independent screwed wellhead with metal-to-metal seal and method of useOIL STATES ENERGY SERVICES INC·Filed 2003·Granted Jan 9, 2007·84 cites·26 claims
- 1492US6817423B2Wall stimulation tool and method of using sameFiled 2002·Granted Nov 16, 2004·119 cites·21 claims
- 1592US6220363B1Wellhead isolation tool and method of using sameFiled 1999·Granted Apr 24, 2001·165 cites·32 claims
- 1691US8205916B2High-pressure threaded union with metal-to-metal seal, and metal ring gasket for sameDALLAS L MURRAY·Filed 2011·Granted Jun 26, 2012·10 cites·20 claims
- 1791US7516786B2Wellhead and control stack pressure test plug toolSTINGER WELLHEAD PROT INC·Filed 2007·Granted Apr 14, 2009·30 cites·20 claims
- 1891US7066269B2Casing mandrel with well stimulation tool and tubing head spool for use with the casing mandrelH W C ENERGY SERVICES INC·Filed 2003·Granted Jun 27, 2006·89 cites·8 claims
- 1991US7032677B2Multi-lock adapters for independent screwed wellheads and methods of using sameH W CES INTERNAT·Filed 2003·Granted Apr 25, 2006·74 cites·12 claims
- 2091US6918439B2Backpressure adaptor pin and methods of useFiled 2003·Granted Jul 19, 2005·99 cites·6 claims
- 2191US6712147B2Spool for pressure containment used in rigless well completion, re-completion, servicing or workoverFiled 2001·Granted Mar 30, 2004·107 cites·21 claims
- 2291US5819851ABlowout preventer protector for use during high pressure oil/gas well stimulationFiled 1997·Granted Oct 13, 1998·156 cites·45 claims
- 2389US8100175B2Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing sameMCGUIRE BOB·Filed 2011·Granted Jan 24, 2012·9 cites·20 claims
- 2489US6938696B2Backpressure adapter pin and methods of useH W CES INTERNAT·Filed 2004·Granted Sep 6, 2005·92 cites·20 claims
- 2589US6827147B2Reciprocating lubricatorFiled 2002·Granted Dec 7, 2004·92 cites·15 claims
- 2689US5615739AApparatus and method for completing and recompleting wells for productionFiled 1996·Granted Apr 1, 1997·126 cites·12 claims
- 2788US7213641B2Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing sameSTINGER WELLHEAD PROT INC·Filed 2004·Granted May 8, 2007·59 cites·28 claims
- 2888US7207384B2Wellhead and control stack pressure test plug toolSTINGER WELLHEAD PROT INC·Filed 2004·Granted Apr 24, 2007·64 cites·20 claims
- 2988US7040410B2Adapters for double-locking casing mandrel and method of using sameHWC ENERGY SERVICES INC·Filed 2003·Granted May 9, 2006·97 cites·25 claims
- 3087US8297592B2High-pressure plug valveMCGUIRE BOB·Filed 2011·Granted Oct 30, 2012·7 cites·20 claims
- 3187US7296631B2System and method for low-pressure well completionSTINGER WELLHEAD PROT INC·Filed 2007·Granted Nov 20, 2007·23 cites·24 claims
- 3287US5927403AApparatus for increasing the flow of production stimulation fluids through a wellheadFiled 1997·Granted Jul 27, 1999·116 cites·25 claims
- 3386US7922216B2High-pressure threaded union with metal-to-metal seal, and metal ring gasket for sameSTINGER WELLHEAD PROT INC·Filed 2010·Granted Apr 12, 2011·6 cites·20 claims
- 3486US5785121ABlowout preventer protector and method of using same during oil and gas well stimulationFiled 1996·Granted Jul 28, 1998·114 cites·23 claims
- 3585US7934546B2Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing sameSTINGER WELLHEAD PROT INC·Filed 2009·Granted May 3, 2011·16 cites·18 claims
- 3685US7159663B2Hybrid wellhead system and method of useOIL STATES ENERGY SERVICES INC·Filed 2004·Granted Jan 9, 2007·73 cites·28 claims
- 3785US6769489B2Well stimulation tool and method of using sameFiled 2002·Granted Aug 3, 2004·75 cites·20 claims
- 3883US7905293B2Hybrid wellhead system and method of useSTINGER WELLHEAD PROT INC·Filed 2010·Granted Mar 15, 2011·5 cites·20 claims
- 3983US7721808B2Hybrid wellhead system and method of useSTINGER WELLHEAD PROT INC·Filed 2008·Granted May 25, 2010·14 cites·20 claims
- 4083US7350562B2Drilling flange and independent screwed wellhead with metal-to-metal seal and method of useSTINGER WELLHEAD PROT INC·Filed 2006·Granted Apr 1, 2008·16 cites·20 claims
- 4183US6179053B1Lockdown mechanism for well tools requiring fixed-point packoffFiled 1999·Granted Jan 30, 2001·97 cites·27 claims
- 4283US6145596AMethod and apparatus for dual string well tree isolationFiled 1999·Granted Nov 14, 2000·100 cites·17 claims
- 4382US6234253B1Method and apparatus for well workover or servicingFiled 1998·Granted May 22, 2001·94 cites·16 claims
- 4482US5540282AApparatus and method for completing/recompleting production wellsFiled 1994·Granted Jul 30, 1996·71 cites·12 claims
- 4581US7055632B2Well stimulation tool and method for inserting a backpressure plug through a mandrel of the toolH W C ENERGY SERVICES INC·Filed 2003·Granted Jun 6, 2006·59 cites·20 claims
- 4679US7428931B2Multi-lock adapters for independent screwed wellheads and methods of using sameSTINGER WELLHEAD PROT INC·Filed 2007·Granted Sep 30, 2008·11 cites·20 claims
- 4778US6695064B2Slip spool and method of using sameFiled 2001·Granted Feb 24, 2004·51 cites·28 claims
- 4878US6247537B1High pressure fluid seal for sealing against a bit guide in a wellhead and method of usingFiled 1999·Granted Jun 19, 2001·73 cites·10 claims
- 4978US4867243AWellhead isolation tool and setting and method of using sameGARNER JONATHAN W·Filed 1988·Granted Sep 19, 1989·77 cites·9 claims
- 5077US7628201B2Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing sameSTINGER WELLHEAD PROT INC·Filed 2007·Granted Dec 8, 2009·11 cites·18 claims
Showing the top 50 of 88 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →