Inventor · disambiguated record
Robert L. Zimmerman
Also filed as: KLEIN HOWARD P · SCHULZE HEINZ · ZIMMERMAN JR ROBERT L · ZIMMERMAN ROBERT L
88 granted patents·4 pending applications·1,589 citations·filing 1975–2008
99Inventor score
Files withTEXACO INC33TEXACO DEVELOPMENT CORP25TEXACO CHEMICAL16HUNTSMAN SPEC CHEM CORP15GRIGSBY JR ROBERT A1
Top patents by PatentIndex Score
92 records- 0196US6399736B1Method of preparing spray elastomer systemsHUNTSMAN SPEC CHEM CORP·Filed 2000·Granted Jun 4, 2002·72 cites·16 claims
- 0296US6013755AMethod of preparing an aliphatic polyurea spray elastomer systemHUNTSMAN SPEC CHEM CORP·Filed 1997·Granted Jan 11, 2000·120 cites·20 claims
- 0395US4338408APolyurethanes using bis(aminoethyl)ether derivatives as catalystsTEXACO INC·Filed 1981·Granted Jul 6, 1982·72 cites·11 claims
- 0494US5616677APreparation of sprayable aliphatic polyurea elastomers having improved propertiesHUNTSMAN SPEC CHEM CORP·Filed 1995·Granted Apr 1, 1997·80 cites·13 claims
- 0594US5003107ACatalytic method for the reductive amination of poly(oxytetramethyle) glycolsTEXACO CHEMICAL·Filed 1989·Granted Mar 26, 1991·63 cites·7 claims
- 0693US6605684B2Method of preparing spray elastomer systemsHUNTSMAN SPEC CHEM CORP·Filed 2002·Granted Aug 12, 2003·39 cites·20 claims
- 0792US5013813APolyurea elastomer with rapid dry timeTEXACO CHEMICAL·Filed 1989·Granted May 7, 1991·50 cites·16 claims
- 0891US4747851ANovel polyoxyalkylene diamine compound and ori-inhibited motor fuel compositionTEXACO INC·Filed 1987·Granted May 31, 1988·47 cites·20 claims
- 0991US4433170ANovel bis(aminoethyl)ether derivatives useful as polyurethane catalystsTEXACO INC·Filed 1981·Granted Feb 21, 1984·45 cites·3 claims
- 1088US4316991AModification of polyols with epoxy resinsTEXACO INC·Filed 1980·Granted Feb 23, 1982·37 cites·16 claims
- 1187US4194069AUrea derivative and use as polyurethane catalystTEXACO DEVELOPMENT CORP·Filed 1978·Granted Mar 18, 1980·33 cites·3 claims
- 1286US4452922APolyamide co-polymer polyols made with diesters and diamines and polyurethanes therefromTEXACO INC·Filed 1983·Granted Jun 5, 1984·38 cites·8 claims
- 1385US4994621AAminated, alkoxylated hydroxyl-terminated polybutadienesTEXACO CHEMICAL·Filed 1989·Granted Feb 19, 1991·32 cites·12 claims
- 1485US4221877AModified diphenylmethane diisocyanates useful in polyurethanes or polyisocyanuratesTEXACO DEVELOPMENT CORP·Filed 1978·Granted Sep 9, 1980·39 cites·3 claims
- 1584US5189075APolyurea elastomers made using polyoxyalkylene tetra-or higher functional amine chain extendersTEXACO CHEMICAL·Filed 1992·Granted Feb 23, 1993·31 cites·15 claims
- 1684US4464488APolyurethanes using monocarboxylic acid salts of bis(aminoethyl)ether derivatives as catalystsTEXACO INC·Filed 1983·Granted Aug 7, 1984·32 cites·13 claims
- 1784US4235811ACompounds from aminated alkoxylated aliphatic alcoholTEXACO DEVELOPMENT CORP·Filed 1979·Granted Nov 25, 1980·28 cites·4 claims
- 1883US6495722B1Mannich polyols for rigid spray foamsHUNTSMAN SPEC CHEM CORP·Filed 2001·Granted Dec 17, 2002·33 cites·12 claims
- 1981US7579426B2Heat activated tertiary amine urethane catalystsHUNTSMAN SPEC CHEM CORP·Filed 2008·Granted Aug 25, 2009·3 cites·9 claims
- 2081US4469823AFlexible polyurethane foams made using an aromatic polyester polyolTEXACO INC·Filed 1983·Granted Sep 4, 1984·27 cites·10 claims
- 2180US4304690ACompounds from aminated alkoxylated aliphatic alcoholTEXACO DEVELOPMENT CORP·Filed 1980·Granted Dec 8, 1981·26 cites·4 claims
- 2280US4242467AUrea derivatives and use as polyurethane catalystsTEXACO DEVELOPMENT CORP·Filed 1979·Granted Dec 30, 1980·23 cites·9 claims
- 2379US5218005APolyurea elastomers made using polyamine/carbonyl adducts as chain extendersTEXACO CHEMICAL·Filed 1991·Granted Jun 8, 1993·23 cites·16 claims
- 2479US4810261AReaction product additive and ori-inhibited motor fuel compositionTEXACO INC·Filed 1988·Granted Mar 7, 1989·26 cites·28 claims
- 2579US4136240AMetallic quaternary ammonium carboxylates as polyisocyanurate catalystsTEXACO DEVELOPMENT CORP·Filed 1978·Granted Jan 23, 1979·23 cites·15 claims
- 2678US4487912AReaction injection molded elastomers containing acid amidesTEXACO INC·Filed 1984·Granted Dec 11, 1984·23 cites·19 claims
- 2778US4442237ANovel aromatic amide polyols from the reaction of phthalic acid residues, alkylene glycols and amino alcoholsTEXACO INC·Filed 1982·Granted Apr 10, 1984·24 cites·18 claims
- 2876US5646235AReductive alkylation of polyaminesHUNTSMAN SPEC CHEM CORP·Filed 1996·Granted Jul 8, 1997·18 cites·8 claims
- 2975US4298708AAminated alkoxylated aliphatic alcohol salts as polyisocyanurate catalystsTEXACO DEVELOPMENT CORP·Filed 1980·Granted Nov 3, 1981·22 cites·2 claims
- 3075US4228310APolyol preparationTEXACO DEVELOPMENT CORP·Filed 1979·Granted Oct 14, 1980·19 cites·10 claims
- 3174US5216154AProcess for the preparation of n-methylmorpholine oxideTEXACO CHEMICAL·Filed 1992·Granted Jun 1, 1993·14 cites·1 claims
- 3274US4647664ACatalytic method for the manufacture of N-alkylmorpholinesTEXACO INC·Filed 1986·Granted Mar 3, 1987·10 cites·7 claims
- 3373US4228248AMorpholine derivatives and use as polyurethane catalystTEXACO DEVELOPMENT CORP·Filed 1979·Granted Oct 14, 1980·17 cites·5 claims
- 3473US4186254AAmine derivatives and use as polyurethane catalystTEXACO DEVELOPMENT CORP·Filed 1978·Granted Jan 29, 1980·17 cites·5 claims
- 3569US7351859B2Heat activated tertiary amine urethane catalystsHUNTSMAN SPEC CHEM CORP·Filed 2004·Granted Apr 1, 2008·6 cites·10 claims
- 3668US5140097AThermoplastic thermosettable polyamide from poly(oxytetramethylene) diamine and poly(oxytetramethylene) oligomer polyamineTEXACO CHEMICAL·Filed 1990·Granted Aug 18, 1992·16 cites·15 claims
- 3767US4769438AAminated propoxylated 1,4-butanediol epoxy resin adducts as epoxy resin curativesTEXACO INC·Filed 1987·Granted Sep 6, 1988·14 cites·10 claims
- 3866US5091585AContinuous preparatin of tertiary aliphatic methyl aminesTEXACO CHEMICAL·Filed 1990·Granted Feb 25, 1992·8 cites·14 claims
- 3966US4342687AN-Substituted perhydrodioxazepines useful as polyurethane catalystsTEXACO INC·Filed 1981·Granted Aug 3, 1982·5 cites·4 claims
- 4065US5130491AContinuous preparation of secondary amines from nitriles using a nickel catalystTEXACO CHEMICAL·Filed 1990·Granted Jul 14, 1992·8 cites·9 claims
- 4165US4373034AModification of polyols with epoxy resins for use in flexible polyurethane foamsTEXACO INC·Filed 1981·Granted Feb 8, 1983·15 cites·12 claims
- 4264US4482743AHydroxyalkyl bis(dialkylaminoalkyl)amine manufactureTEXACO INC·Filed 1983·Granted Nov 13, 1984·6 cites·6 claims
- 4364US4442238AAromatic amide polyols for rigid polyurethane foamsTEXACO INC·Filed 1982·Granted Apr 10, 1984·14 cites·32 claims
- 4463US6534555B1Catalyst systems for polyurethane polyester foamsHUNTSMAN SPEC CHEM CORP·Filed 2001·Granted Mar 18, 2003·5 cites·23 claims
- 4563US5254737AContinuous preparation of secondary amines from nitriles using a two-step processTEXACO CHEMICAL·Filed 1990·Granted Oct 19, 1993·7 cites·11 claims
- 4663US5075506AContinuous preparation of secondary amines from nitriles using cobalt and zirconiumTEXACO CHEMICAL·Filed 1990·Granted Dec 24, 1991·7 cites·16 claims
- 4761US4350778AMethod for making RIM polyurethane elastomers using as the catalyst system a hydroxyalkylamine, dibutyltin dilaurate and an alkyltin mercaptideTEXACO INC·Filed 1981·Granted Sep 21, 1982·13 cites·4 claims
- 4861US4332720AN,N'-Polyoxyalkylene bis(lactam carboxylic acids)TEXACO DEVELOPMENT CORP·Filed 1977·Granted Jun 1, 1982·9 cites·9 claims
- 4961US4323658APolyisocyanurates from diols modified with epoxy resinsTEXACO INC·Filed 1980·Granted Apr 6, 1982·13 cites·22 claims
- 5061US4237282AUrea derivative and use as polyurethane catalystTEXACO DEVELOPMENT CORP·Filed 1979·Granted Dec 2, 1980·3 cites·1 claims
Showing the top 50 of 92 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →