Inventor · disambiguated record
Larry Grigar
Also filed as: GRIGAR LARRY · GRIGAR LARRY L
17 granted patents·2 pending applications·844 citations·filing 1984–2009
96Inventor score
Files withSCHLUMBERGER TECHNOLOGY CORP8HALLIBURTON CO6HALLIBURTON LOGGING SERVICES2GRIGAR LARRY L1HROMAS JOE C1
Top patents by PatentIndex Score
19 records- 0196US4762067ADownhole perforating method and apparatus using secondary explosive detonatorsHALLIBURTON CO·Filed 1987·Granted Aug 9, 1988·157 cites·23 claims
- 0291US8151882B2Technique and apparatus to deploy a perforating gun and sand screen in a wellGRIGAR LARRY L·Filed 2005·Granted Apr 10, 2012·54 cites·22 claims
- 0391US4574892ATubing conveyed perforating gun electrical detonatorHALLIBURTON CO·Filed 1984·Granted Mar 11, 1986·109 cites·13 claims
- 0490US7278484B2Techniques and systems associated with perforation and the installation of downhole toolsSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Oct 9, 2007·35 cites·37 claims
- 0585US7487833B2Safety apparatus for perforating systemSCHLUMBERGER TECHNOLOGY CORP·Filed 2006·Granted Feb 10, 2009·15 cites·20 claims
- 0685US4759291AThrough bulkhead explosive initiator for oil well usageHALLIBURTON CO·Filed 1987·Granted Jul 26, 1988·48 cites·9 claims
- 0783US6719061B2Apparatus and method for inserting and retrieving a tool string through well surface equipmentSCHLUMBERGER TECHNOLOGY CORP·Filed 2002·Granted Apr 13, 2004·69 cites·27 claims
- 0881US8118098B2Flow control system and method for use in a wellboreHROMAS JOE C·Filed 2006·Granted Feb 21, 2012·26 cites·13 claims
- 0980US8186425B2Sympathetic ignition closed packed propellant gas generatorSMART MOISES ENRIQUE·Filed 2009·Granted May 29, 2012·23 cites·17 claims
- 1080US5040619AWireline supported perforating gun enabling oriented perforationsHALLIBURTON LOGGING SERVICES·Filed 1990·Granted Aug 20, 1991·78 cites·6 claims
- 1179US5211714AWireline supported perforating gun enabling oriented perforationsHALLIBURTON LOGGING SERVICES·Filed 1990·Granted May 18, 1993·75 cites·9 claims
- 1279US4629001ATubing pressure operated initiator for perforating in a well boreholeHALLIBURTON CO·Filed 1985·Granted Dec 16, 1986·60 cites·17 claims
- 1376US7353871B2Downhole automatic tool release and method of useSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Apr 8, 2008·16 cites·4 claims
- 1466US7152676B2Techniques and systems associated with perforation and the installation of downhole toolsSCHLUMBERGER TECHNOLOGY CORP·Filed 2003·Granted Dec 26, 2006·25 cites·35 claims
- 1564US4678044ATubing pressure operated initiator for perforating in a well boreholeHALLIBURTON CO·Filed 1986·Granted Jul 7, 1987·34 cites·22 claims
- 1656US7493958B2Technique and apparatus for multiple zone perforatingSCHLUMBERGER TECHNOLOGY CORP·Filed 2005·Granted Feb 24, 2009·4 cites·22 claims
- 1745US4664184ABalanced isolation tool enabling clean fluid in tubing perforated operationsHALLIBURTON CO·Filed 1986·Granted May 12, 1987·16 cites·8 claims
- 1842US2011073325A1Torque resistant coupling for oilwell toolstringSCHLUMBERGER TECHNOLOGY CORP·Filed 2009·Application pending·0 cites
- 1939US2009151589A1Explosive shock dissipaterSCHLUMBERGER TECHNOLOGY CORP·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →