Inventor · disambiguated record
Gauri Sankar Lal
Also filed as: LAL GAURI S · LAL GAURI SANKAR
47 granted patents·10 pending applications·326 citations·filing 1992–2023
98Inventor score
Files withAIR PROD & CHEM31EVONIK OPERATIONS GMBH14EVONIK DEGUSSA GMBH6LAL GAURI SANKAR4CHENG HANSONG1
Top patents by PatentIndex Score
57 records- 0196US7279447B2Subterranean well and oil or gas stream treatment with bis(3-alkoxyalkan-2-ol) sulfides, sulfones, and sulfoxides: new surface active agentsAIR PROD & CHEM·Filed 2007·Granted Oct 9, 2007·22 cites·2 claims
- 0295US6958415B2Synthesis of pentafluorosulfuranyl arylenesAIR PROD & CHEM·Filed 2003·Granted Oct 25, 2005·42 cites·18 claims
- 0395US6222064B1Fluorination with aminosulfur trifluoridesAIR PROD & CHEM·Filed 2000·Granted Apr 24, 2001·36 cites·16 claims
- 0493US8129555B2Precursors for depositing silicon-containing films and methods for making and using sameCHENG HANSONG·Filed 2008·Granted Mar 6, 2012·53 cites·21 claims
- 0590US9080007B2Anhydride accelerators for epoxy resin systemsAIR PROD & CHEM·Filed 2013·Granted Jul 14, 2015·5 cites·23 claims
- 0690US7432340B2Fluorinated alkyl substituted-thieno[3,4-]thiophene monomers and polymers therefromAIR PROD & CHEM·Filed 2005·Granted Oct 7, 2008·10 cites·24 claims
- 0789US9738750B2One component epoxy curing agents comprising hydroxyalkylamino cycloalkanesEVONIK DEGUSSA GMBH·Filed 2013·Granted Aug 22, 2017·4 cites·17 claims
- 0889US7572879B2Fluorinated alkyl substituted-thieno[3,4-b]thiophene monomers and polymers therefromAIR PROD & CHEM·Filed 2006·Granted Aug 11, 2009·10 cites·12 claims
- 0989US6515191B2Synthesis of vicinal difluoro aromatics and intermediates thereofAIR PROD & CHEM·Filed 2002·Granted Feb 4, 2003·12 cites·8 claims
- 1087US10696777B2Aldehyde scavengers mixtures for polyurethane foamsEVONIK OPERATIONS GMBH·Filed 2016·Granted Jun 30, 2020·2 cites·11 claims
- 1186US10683385B2Aldehyde scavengers for polyurethane foamsEVONIK OPERATIONS GMBH·Filed 2015·Granted Jun 16, 2020·2 cites·5 claims
- 1286US9862798B2Epoxy liquid curing agent compositionsEVONIK DEGUSSA GMBH·Filed 2013·Granted Jan 9, 2018·4 cites·20 claims
- 1385US9546243B2Amines and polymeric phenols and usage thereof as curing agents in one component epoxy resin compositionsAIR PROD & CHEM·Filed 2013·Granted Jan 17, 2017·3 cites·24 claims
- 1485US7205431B2Bis(3-alkoxyalkan-2-ol) sulfides, sulfones, and sulfoxides: new surface active agentsAIR PROD & CHEM·Filed 2005·Granted Apr 17, 2007·5 cites·25 claims
- 1584US6462191B1Synthesis of 2-deoxy-2-fluoro-arabinose derivativesAIR PROD & CHEM·Filed 2000·Granted Oct 8, 2002·18 cites·24 claims
- 1683US6479645B1Sulfurpentafluoride compounds and methods for making and using sameAIR PROD & CHEM·Filed 2002·Granted Nov 12, 2002·13 cites·19 claims
- 1781US11603429B2Phenalkamine epoxy curing agents and epoxy resin compositions containing the sameEVONIK OPERATIONS GMBH·Filed 2019·Granted Mar 14, 2023·1 cites·19 claims
- 1878US7030283B2Process for producing 1,1-difluorovinyl cycloaliphatic compoundsAIR PROD & CHEM·Filed 2004·Granted Apr 18, 2006·8 cites·17 claims
- 1976US7094365B2Pentafluorosulfanyl-substituted thienothiophene monomers and conducting polymersAIR PROD & CHEM·Filed 2004·Granted Aug 22, 2006·11 cites·18 claims
- 2075US6455744B1Synthesis of vicinal difluoro aromatics and intermediates thereofAIR PROD & CHEM·Filed 2001·Granted Sep 24, 2002·5 cites·10 claims
- 2174US6096922AProcess for the synthesis of dialkyl, diaryl, and arylalkyl aminosulfur trifluoridesAIR PROD & CHEM·Filed 1999·Granted Aug 1, 2000·13 cites·17 claims
- 2271US10017603B2One component epoxy curing agents comprising hydroxyalkylamino cycloalkanesEVONIK DEGUSSA GMBH·Filed 2017·Granted Jul 10, 2018·0 cites·13 claims
- 2370US7339081B2Route to prepare 4-bromo-1-oxypentafluorosulfanylbenzeneAIR PROD & CHEM·Filed 2006·Granted Mar 4, 2008·1 cites·12 claims
- 2470US6080886AFluorination with aminosulfur trifluoridesAIR PROD & CHEM·Filed 1997·Granted Jun 27, 2000·10 cites·20 claims
- 2569US11365313B2Cardanol blocked isocyanate adhesion promotor for PVC plastisolEVONIK OPERATIONS GMBH·Filed 2019·Granted Jun 21, 2022·0 cites·18 claims
- 2669US7049472B2Bis(3-alkoxyalkan-2-OL) sulfides, sulfones, and sulfoxides: new surface active agentsAIR PROD & CHEM·Filed 2004·Granted May 23, 2006·8 cites·37 claims
- 2769US6870068B1Synthesis of pentafluorosulfuranyl substituted alkanesAIR PROD & CHEM·Filed 2003·Granted Mar 22, 2005·4 cites·21 claims
- 2867US2024376343A1Polyurea compositions from polyaspartic esters and 2-substituted butanedioic acid estersEVONIK OPERATIONS GMBH·Filed 2022·Application pending·0 cites
- 2966US7341985B22-Hydroxy-3-alkoxypropyl sulfides, sulfones, and sulfoxides: new surface active agentsAIR PROD & CHEM·Filed 2004·Granted Mar 11, 2008·8 cites·33 claims
- 3066US2025034321A1Compositions of epoxy curing agent incorporating naphthol and naphthol derivativesEVONIK OPERATIONS GMBH·Filed 2022·Application pending·0 cites
- 3163US5442084AMethod of selective fluorinationAIR PROD & CHEM·Filed 1994·Granted Aug 15, 1995·9 cites·20 claims
- 3263US2024327567A1Low Temperature Curable One Component Epoxy Compositions containing Resin-Blocked Urea CurativesEVONIK OPERATIONS GMBH·Filed 2023·Application pending·0 cites
- 3363US2024327615A1Solutions of amines in polymeric phenols in combination with other resinsEVONIK OPERATIONS GMBH·Filed 2023·Application pending·0 cites
- 3462US12152161B2Polyurea compositions from polyaspartic esters and secondary heterocyclic amines derived aspartic estersEVONIK OPERATIONS GMBH·Filed 2019·Granted Nov 26, 2024·0 cites·4 claims
- 3561US11891476B2Phenalkamine epoxy curing agents from methylene bridged poly(cyclohexyl-aromatic) amines and epoxy resin compositions containing the sameEVONIK OPERATIONS GMBH·Filed 2020·Granted Feb 6, 2024·0 cites·5 claims
- 3660US11286336B2Low temperature anhydride epoxy cured systemsEVONIK OPERATIONS GMBH·Filed 2017·Granted Mar 29, 2022·0 cites·12 claims
- 3760US6242645B1Thermally stable aminosulfur trifluoridesAIR PROD & CHEM·Filed 2000·Granted Jun 5, 2001·1 cites·13 claims
- 3857US7166755B2Synthesis of pentafluorosulfanylnaphthaleneAIR PROD & CHEM·Filed 2004·Granted Jan 23, 2007·1 cites·18 claims
- 3956US10081704B2Epoxy systems having improved fracture toughnessEVONIK DEGUSSA GMBH·Filed 2016·Granted Sep 25, 2018·0 cites·9 claims
- 4054US7771611B2Oxypentafluorosulfate compositions and processes for making themAIR PROD & CHEM·Filed 2006·Granted Aug 10, 2010·0 cites·13 claims
- 4154US2008254218A1Metal Precursor Solutions For Chemical Vapor DepositionAIR PROD & CHEM·Filed 2008·Application pending·0 cites
- 4253US11530293B2Polyamides and amidoamines derived from hydroxyalkylpolyamines: epoxy curing agents with improved propertiesEVONIK OPERATIONS GMBH·Filed 2017·Granted Dec 20, 2022·0 cites·16 claims
- 4353US10035874B2Epoxide-based compositionEVONIK DEGUSSA GMBH·Filed 2015·Granted Jul 31, 2018·0 cites·17 claims
- 4453US6894200B2Synthesis of vicinal difluoro aromatics and intermediates thereofAIR PROD & CHEM·Filed 2003·Granted May 17, 2005·1 cites·11 claims
- 4549US10174154B2Amidopolyamines with enhanced gel-time for elevated temperature applicationsEVONIK DEGUSSA GMBH·Filed 2015·Granted Jan 8, 2019·0 cites·9 claims
- 4649US6706933B2Synthesis of vicinal difluoro aromatics and intermediates thereofAIR PROD & CHEM·Filed 2002·Granted Mar 16, 2004·0 cites·8 claims
- 4746US10738147B2N-hydroxyl ethyl piperidine (NHEP): a novel curing agent for epoxy systemsEVONIK OPERATIONS GMBH·Filed 2017·Granted Aug 11, 2020·0 cites·20 claims
- 4846US7662959B2Quaternary trifluoromethylcyclohexane derivatives for liquid crystalsAIR PROD & CHEM·Filed 2008·Granted Feb 16, 2010·0 cites·6 claims
- 4946US6207860B1Thermally stable aminosulfur trifluoridesAIR PROD & CHEM·Filed 1997·Granted Mar 27, 2001·2 cites·9 claims
- 5045US2008312464A1Oxopentafluorosulfanyl-Substituted Alicyclic CompoundsAIR PROD & CHEM·Filed 2007·Application pending·0 cites
Showing the top 50 of 57 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →