Inventor · disambiguated record
John E. Dewhurst
Also filed as: DEWHURST JOHN E · DEWHURST JOHN ELTON
36 granted patents·1 pending application·510 citations·filing 1983–2013
98Inventor score
Top patents by PatentIndex Score
37 records- 0193US4519965AInternal mold release agent for use in reaction injection moldingMOBAY CHEMICAL CORP·Filed 1984·Granted May 28, 1985·72 cites·34 claims
- 0290US4539158ALiquid diphenylmethane diisocyanate compositionsMOBAY CHEMICAL CORP·Filed 1984·Granted Sep 3, 1985·29 cites·11 claims
- 0390US4539156ALiquid diphenylmethane diisocyanate compositionsMOBAY CHEMICAL CORP·Filed 1984·Granted Sep 3, 1985·29 cites·11 claims
- 0488US8530534B2Trimerization catalysts from sterically hindered saltsBURDENIUC JUAN JESUS·Filed 2006·Granted Sep 10, 2013·7 cites·27 claims
- 0587US4581386AInternal mold release agent for use in reaction injection moldingMOBAY CHEMICAL CORP·Filed 1985·Granted Apr 8, 1986·61 cites·17 claims
- 0686US8552077B2Trimer catalyst additives for improving foam processabilityBURDENIUC JUAN JESUS·Filed 2006·Granted Oct 8, 2013·6 cites·23 claims
- 0786US4442235AProcess and composition for the production of polyurethane elastomer moldingsMOBAY CHEMICAL CORP·Filed 1983·Granted Apr 10, 1984·36 cites·14 claims
- 0882US8580864B2Trimer catalysts with improved processability and surface cureBURDENIUC JUAN JESUS·Filed 2006·Granted Nov 12, 2013·4 cites·26 claims
- 0979US5322914AAromatic polyisocyanurate resins and process thereforAIR PROD & CHEM·Filed 1993·Granted Jun 21, 1994·27 cites·21 claims
- 1079US4897428AInternal mold release agent for use in molding polyurethanes and/or polyureasMOBAY CORP·Filed 1988·Granted Jan 30, 1990·25 cites·3 claims
- 1178US4886838AInternal mold release agent for use in reaction injection moldingMOBAY CORP·Filed 1988·Granted Dec 12, 1989·23 cites·1 claims
- 1278US4764540ARim polyurethane or polyurea compositions containing internal mold release agentsMOBAY CORP·Filed 1987·Granted Aug 16, 1988·28 cites·19 claims
- 1377US4539157ALiquid diphenylmethane diisocyanate compositionsMOBAY CHEMICAL CORP·Filed 1984·Granted Sep 3, 1985·24 cites·11 claims
- 1476US9878318B2Trimer catalyst additives for improving foam processabilityEVONIK DEGUSSA GMBH·Filed 2013·Granted Jan 30, 2018·1 cites·25 claims
- 1575US9890236B2Trimerization catalysts from sterically hindered saltsEVONIK DEGUSSA GMBH·Filed 2013·Granted Feb 13, 2018·1 cites·15 claims
- 1675US9815932B2Trimer catalysts with improved processability and surface cureEVONIK DEGUSSA GMBH·Filed 2013·Granted Nov 14, 2017·1 cites·12 claims
- 1772US4789688ARim polyurethane compositions containing internal mold release agentsMOBAY CORP·Filed 1988·Granted Dec 6, 1988·19 cites·11 claims
- 1867US6046249ADimensional stabilizing, cell opening additives for polyurethane flexible and rigid foamsAIR PROD & CHEM·Filed 1999·Granted Apr 4, 2000·21 cites·20 claims
- 1965US8445555B2Stabilized carbanions as trimerization catalystsBURDENIUC JUAN JESUS·Filed 2006·Granted May 21, 2013·1 cites·30 claims
- 2065US4847307ARim polyurethane compositions containing internal mold release agentsMOBAY CORP·Filed 1988·Granted Jul 11, 1989·14 cites·11 claims
- 2159US5002999AInternal mold release agent for use in reaction injection moldingMOBAY CORP·Filed 1988·Granted Mar 26, 1991·14 cites·6 claims
- 2257US5076989AInternal mold release agent for use in reaction injection moldingMOBAY CORP·Filed 1990·Granted Dec 31, 1991·10 cites·1 claims
- 2354US5420186AInternal mold release agents comprising metallic soaps compatibilized with liquid quaternary ammonium saltsAIR PROD & CHEM·Filed 1993·Granted May 30, 1995·12 cites·19 claims
- 2451US5211749AInternal mold release agent for use in reaction injection moldingMILES INC·Filed 1991·Granted May 18, 1993·6 cites·4 claims
- 2551US4963640AProcess and compositions for production of moldingsMOBAY CORP·Filed 1989·Granted Oct 16, 1990·7 cites·7 claims
- 2648US5541338AFatty imidazoline crosslinkers for polyurethane, polyurethaneurea and polyurea applicationsAIR PROD & CHEM·Filed 1995·Granted Jul 30, 1996·10 cites·17 claims
- 2745US5019600AInternal mold release agent for use in reaction injection moldingMOBAY CORP·Filed 1989·Granted May 28, 1991·6 cites·2 claims
- 2845US2008269365A1Additives for Improving Surface Cure and Dimensional Stability of Polyurethane FoamsANDREW GARY DALE·Filed 2007·Application pending·0 cites
- 2940US5420188AInternal mold release agent for use in reaction injection moldingMILES INC·Filed 1992·Granted May 30, 1995·3 cites·6 claims
- 3040US5308880ATin catalysts for use in rim polyol blends containing acidic internal mold release agents and diethyltoluenediamine chain extenderAIR PROD & CHEM·Filed 1993·Granted May 3, 1994·3 cites·17 claims
- 3137US5312845ARim polyol blends containing acidic siloxane internal mold release agents and tin catalystsAIR PROD & CHEM·Filed 1992·Granted May 17, 1994·4 cites·19 claims
- 3236US5358985AIonic siloxane as internal mold release agent for polyurethane, polyurethaneurea and polyurea elastomersAIR PROD & CHEM·Filed 1992·Granted Oct 25, 1994·2 cites·16 claims
- 3334US5324759ARIM polyol blends containing acidic siloxane internal mold release agents and quaternary ammonium phenoxidesAIR PROD & CHEM·Filed 1993·Granted Jun 28, 1994·1 cites·13 claims
- 3433US5256704APolyurethane RIM elastomers obtained with hydroxyl-containing organotin catalystsAIR PROD & CHEM·Filed 1992·Granted Oct 26, 1993·1 cites·19 claims
- 3533US5204440APolyurethane rim elastomers obtained with hydroxyl-containing heterocyclic organotin catalystsAIR PROD & CHEM·Filed 1990·Granted Apr 20, 1993·1 cites·8 claims
- 3632US5317075AHydroxyl containing quaternary ammonium salts of fatty acids as internal mold release compositionsAIR PROD & CHEM·Filed 1992·Granted May 31, 1994·1 cites·20 claims
- 3730US5227450AHydroxyl-containing organotin catalysts for making polyurethane rim elastomersAIR PROD & CHEM·Filed 1992·Granted Jul 13, 1993·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →