Inventor · disambiguated record
Sophany Thach
Also filed as: THACH SOPHANY
26 granted patents·7 pending applications·590 citations·filing 1982–2023
97Inventor score
Files withCHEVRON USA INC21ATLANTIC RICHFIELD CO6DEAN ROBERT MATTHEW1DWARAKANATH VARADARAJAN1HOWES ANDREW J1
Top patents by PatentIndex Score
33 records- 0198US9902894B2Polymer compositionsCHEVRON USA INC·Filed 2015·Granted Feb 27, 2018·34 cites·28 claims
- 0298US9902895B2Polymer compositionsCHEVRON USA INC·Filed 2015·Granted Feb 27, 2018·33 cites·24 claims
- 0398US9896617B2Polymer compositionsCHEVRON USA INC·Filed 2015·Granted Feb 20, 2018·35 cites·35 claims
- 0498US9617464B2Mixed carbon length synthesis of primary guerbet alcoholsCHEVRON USA INC·Filed 2016·Granted Apr 11, 2017·43 cites·10 claims
- 0598US9605198B2Mixed carbon length synthesis of primary Guerbet alcoholsCHEVRON USA INC·Filed 2015·Granted Mar 28, 2017·43 cites·12 claims
- 0697US9976072B2Multicarboxylate compositions and method of making the sameCHEVRON USA INC·Filed 2015·Granted May 22, 2018·43 cites·19 claims
- 0797US9909053B2Polymer compositionsCHEVRON USA INC·Filed 2015·Granted Mar 6, 2018·34 cites·30 claims
- 0895US10011757B2Method for remediation of damage in regions of formations near injection wellsCHEVRON USA INC·Filed 2017·Granted Jul 3, 2018·16 cites·23 claims
- 0995US7770641B2Method for enhancing oil recovery with an improved oil recovery surfactantCHEVRON USA INC·Filed 2007·Granted Aug 10, 2010·78 cites·27 claims
- 1094US11834606B2Treating fluid comprising hydrocarbons, water, and polymerCHEVRON USA INC·Filed 2022·Granted Dec 5, 2023·2 cites·37 claims
- 1194US9752071B2Composition and method for remediation of near wellbore damageCHEVRON USA INC·Filed 2014·Granted Sep 5, 2017·21 cites·7 claims
- 1293US11242739B2Treating fluid comprising hydrocarbons, water, and polymerCHEVRON USA INC·Filed 2019·Granted Feb 8, 2022·7 cites·22 claims
- 1393US10233382B2Method of using multicarboxylate compositions in enhanced oil recoveryCHEVRON USA INC·Filed 2017·Granted Mar 19, 2019·6 cites·10 claims
- 1491US11591893B2PH control in fluid treatmentCHEVRON USA INC·Filed 2019·Granted Feb 28, 2023·4 cites·25 claims
- 1589US5529122AMethod for altering flow profile of a subterranean formation during acid stimulationATLANTIC RICHFIELD CO·Filed 1994·Granted Jun 25, 1996·61 cites·10 claims
- 1680US8573299B2Non-ionic alkali polymer solutions for enhanced oil recovery in a subterranean formationDWARAKANATH VARADARAJAN·Filed 2010·Granted Nov 5, 2013·11 cites·29 claims
- 1777US12312534B2Treating fluid comprising hydrocarbons, water, and polymerCHEVRON USA INC·Filed 2023·Granted May 27, 2025·0 cites·19 claims
- 1874US12037542B2Method of using multicarboxylate compositions in enhanced oil recoveryCHEVRON USA INC·Filed 2022·Granted Jul 16, 2024·0 cites·18 claims
- 1974US11248159B2Method of using multicarboxylate compositions in enhanced oil recoveryCHEVRON USA INC·Filed 2019·Granted Feb 15, 2022·0 cites·15 claims
- 2073US12215276B2Ph control in fluid treatmentCHEVRON USA INC·Filed 2023·Granted Feb 4, 2025·0 cites·20 claims
- 2173US5434192AHigh-stability foams for long-term suppression of hydrocarbon vaporsATLANTIC RICHFIELD CO·Filed 1991·Granted Jul 18, 1995·52 cites·18 claims
- 2271US5296164AHigh-stability foams for long-term suppression of hydrocarbon vaporsATLANTIC RICHFIELD CO·Filed 1992·Granted Mar 22, 1994·44 cites·16 claims
- 2361US8076272B2Method of making a synthetic alkylaryl sulfonateHOWES ANDREW J·Filed 2009·Granted Dec 13, 2011·2 cites·20 claims
- 2447US2012322699A1Method of Preventing Scale Formation During Enhanced Oil RecoveryKARAZINCIR OYA A·Filed 2012·Application pending·0 cites
- 2546US2022290031A1Aqueous foam compositions and methods of making and using thereofCHEVRON USA INC·Filed 2020·Application pending·0 cites
- 2642US2014202927A1Method of breaking oil-water micellar emulsionsTAO FAN-SHENG TEDDY·Filed 2013·Application pending·0 cites
- 2742US2013298644A1Apparatus and Method For Measuring Viscosity of a FluidDEAN ROBERT MATTHEW·Filed 2013·Application pending·0 cites
- 2841US2019079066A1Method for predicting phase behavior in chemical enhanced oil recovery processesCHEVRON USA INC·Filed 2018·Application pending·0 cites
- 2940US2013068457A1Method of Manufacture of Guerbet Alcohols For Making Surfactants Used In Petroleum Industry OperationsTHACH SOPHANY·Filed 2011·Application pending·0 cites
- 3037US5265651AFoam reduction of vapor emissions from storage tanksATLANTIC RICHFIELD CO·Filed 1992·Granted Nov 30, 1993·9 cites·18 claims
- 3134US2019323324A1Partitioning polymer into phases of a microemulsion systemCHEVRON USA INC·Filed 2019·Application pending·0 cites
- 3233US5564456AMethod for mitigating slugs in a pipelineATLANTIC RICHFIELD CO·Filed 1995·Granted Oct 15, 1996·7 cites·14 claims
- 3327US4701271ATreating oil-water-surfactant emulsions with strong inorganic acidATLANTIC RICHFIELD CO·Filed 1982·Granted Oct 20, 1987·5 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →