Inventor · disambiguated record
Howard P. Klein
Also filed as: KLEIN HOWARD P · KLEIN HOWARD PAUL · WADDILL HAROLD G · ZIMMERMAN ROBERT L
61 granted patents·6 pending applications·636 citations·filing 1974–2019
99Inventor score
Files withHUNTSMAN SPEC CHEM CORP19TEXACO DEVELOPMENT CORP17HUNTSMAN PETROCHEMICAL LLC13TEXACO INC6KLEIN HOWARD P3
Top patents by PatentIndex Score
67 records- 0196US9988483B2Pyrrolidine-based catalysts for use in polyurethane materialsHUNTSMAN PETROCHEMICAL LLC·Filed 2015·Granted Jun 5, 2018·11 cites·13 claims
- 0296US7816481B2Polyether polyamine agents and mixtures thereofHUNTSMAN PETROCHEMICAL LLC·Filed 2009·Granted Oct 19, 2010·25 cites·8 claims
- 0391US6262297B1Preparation of hydroxyalkylcarbamates from six-membered cyclic carbonatesHUNTSMAN SPEC CHEM CORP·Filed 2000·Granted Jul 17, 2001·23 cites·15 claims
- 0489US4186255ABis-quaternary ammonium salts as polyisocyanurate catalystsTEXACO DEVELOPMENT CORP·Filed 1978·Granted Jan 29, 1980·41 cites·15 claims
- 0588US6498278B1Alkoxylation of 6-membered alkylene carbonatesHUNTSMAN SPEC CHEM CORP·Filed 2001·Granted Dec 24, 2002·18 cites·22 claims
- 0688US5340889ALiquification of bis-carbonates of bis-glycidyl ethersTEXACO CHEMICAL·Filed 1993·Granted Aug 23, 1994·29 cites·14 claims
- 0784US7012043B2Drilling fluidsHUNTSMAN SPEC CHEM CORP·Filed 2002·Granted Mar 14, 2006·36 cites·15 claims
- 0883US7550550B2Polyether polyamine agents and mixtures thereforHUNTSMAN SPEC CHEM CORP·Filed 2003·Granted Jun 23, 2009·11 cites·8 claims
- 0983US4612335APolyoxyalkylene polyether amino alcohols containing a tertiary hydroxyl group and flexible polyurethanes made therefromTEXACO INC·Filed 1985·Granted Sep 16, 1986·29 cites·10 claims
- 1082US11198756B2Blend for curing epoxy resin composistionsHUNTSMAN PETROCHEMICAL LLC·Filed 2017·Granted Dec 14, 2021·1 cites·5 claims
- 1182US6503891B1Water emulsifiable formulationsHUNTSMAN SPEC CHEM CORP·Filed 2000·Granted Jan 7, 2003·11 cites·25 claims
- 1282US4184024APolyurethanes prepared from polyols from 2,3-morpholinedionesTEXACO DEVELOPMENT CORP·Filed 1978·Granted Jan 15, 1980·10 cites·4 claims
- 1382US4133803APolyoxypropylene polyamine polyamide thermoplastic adhesivesTEXACO DEVELOPMENT CORP·Filed 1976·Granted Jan 9, 1979·37 cites·7 claims
- 1481US9067865B2Etheramines and their use as intermediates for polymer synthesisKLEIN HOWARD P·Filed 2010·Granted Jun 30, 2015·3 cites·20 claims
- 1581US6627761B2Multifunctional carbonates and derivativesHUNTSMAN SPEC CHEM CORP·Filed 2001·Granted Sep 30, 2003·10 cites·9 claims
- 1679US7078475B2Synergistic amine chain-extenders in polyurea spray elastomersHUNTSMAN SPEC CHEM CORP·Filed 2002·Granted Jul 18, 2006·17 cites·12 claims
- 1779US6420327B1Carbonate-based coating removersHUNTSMAN SPEC CHEM CORP·Filed 2000·Granted Jul 16, 2002·16 cites·29 claims
- 1879US4136240AMetallic quaternary ammonium carboxylates as polyisocyanurate catalystsTEXACO DEVELOPMENT CORP·Filed 1978·Granted Jan 23, 1979·23 cites·15 claims
- 1978US6608012B2Process and formulations to remove paint and primer coatings from thermoplastic polyolefin substratesHUNTSMAN SPEC CHEM CORP·Filed 2001·Granted Aug 19, 2003·16 cites·7 claims
- 2077US6515145B2Process for the production of carbonates that melt at a high temperatureHUNTSMAN SPEC CHEM CORP·Filed 2000·Granted Feb 4, 2003·12 cites·27 claims
- 2176US5235007AEpoxy curing agentsTEXACO CHEMICAL·Filed 1991·Granted Aug 10, 1993·14 cites·13 claims
- 2276US4166172AProduction of polyether polyol compositionsTEXAS DEV CORP·Filed 1976·Granted Aug 28, 1979·23 cites·8 claims
- 2375US9054313B2Etheramines containing flexible and rigid segments and their use as intermediates for polymer synthesisKLEIN HOWARD P·Filed 2010·Granted Jun 9, 2015·1 cites·20 claims
- 2474US11292873B2Etheramines prepared from a mixture of two or more multifunctional alcohol initiators, and their use as curatives or intermediates for polymer synthesisHUNTSMAN PETROCHEMICAL LLC·Filed 2019·Granted Apr 5, 2022·0 cites·8 claims
- 2574US4820810AUrea catalyst for preparation of sucrose polyols useful for rigid polyurethane foamsARCO CHEM TECH·Filed 1986·Granted Apr 11, 1989·19 cites·20 claims
- 2674US4118422APolyols from 2,3-morpholinedionesTEXACO DEVELOPMENT CORP·Filed 1977·Granted Oct 3, 1978·24 cites·9 claims
- 2771US4523025APolymer polyols from partially reacted polyaminesTEXACO INC·Filed 1983·Granted Jun 11, 1985·19 cites·5 claims
- 2870US6596677B1Propylene carbonate based cleaning compositionsHUNTSMAN SPEC CHEM CORP·Filed 2000·Granted Jul 22, 2003·8 cites·32 claims
- 2970US4888446APreparation of polyoxyalkylene glycol aminesTEXACO CHEMICAL·Filed 1988·Granted Dec 19, 1989·16 cites·6 claims
- 3066US10717875B2Comb-like polyetheralkanolamines in inks and coatingsHUNTSMAN PETROCHEMICAL LLC·Filed 2016·Granted Jul 21, 2020·0 cites·12 claims
- 3165US4465858AProcedure for the partial alkoxylation of polyoxyalkyleneaminesTEXACO INC·Filed 1983·Granted Aug 14, 1984·15 cites·12 claims
- 3264US10513578B2Etheramines and their use as curatives or intermediates for polymer synthesisHUNTSMAN PETROCHEMICAL LLC·Filed 2014·Granted Dec 24, 2019·0 cites·10 claims
- 3363US9567482B2Comb-like polyetheralkanolamines in inks and coatingsHUNTSMAN PETROCHEMICAL LLC·Filed 2015·Granted Feb 14, 2017·0 cites·16 claims
- 3462US4164520AAccelerated cure of epoxy resinsTEXACO DEVELOPMENT CORP·Filed 1978·Granted Aug 14, 1979·11 cites·8 claims
- 3561US4654376APolyurethane foams based on amino polyolsTEXACO INC·Filed 1985·Granted Mar 31, 1987·12 cites·6 claims
- 3661US4404121AProcess for preparing polyol-catalyst mixtures useful in the preparation of rigid polyurethane cellular productsTEXACO INC·Filed 1981·Granted Sep 13, 1983·14 cites·9 claims
- 3760US4251637ATertiary amino substituted oxazolidines as polyisocyanurate catalystsTEXACO DEVELOPMENT CORP·Filed 1979·Granted Feb 17, 1981·10 cites·5 claims
- 3859US9822215B2Etheramines with enhanced thermal stability and their use as curatives or intermediates for polymer synthesisHUNTSMAN PETROCHEMICAL LLC·Filed 2014·Granted Nov 21, 2017·0 cites·17 claims
- 3958US8858828B2Use of 2-(3-aminopropoxy)ethan-1-ol as an absorbent to remove acidic gasesKLEIN HOWARD P·Filed 2011·Granted Oct 14, 2014·1 cites·22 claims
- 4057US11566107B2Etheramine mixture containing polyether diamines and method of making and using the sameHUNTSMAN PETROCHEMICAL LLC·Filed 2019·Granted Jan 31, 2023·0 cites·19 claims
- 4157US4026836AIsocyanurate foam catalystTEXACO DEVELOPMENT CORP·Filed 1975·Granted May 31, 1977·11 cites·10 claims
- 4255US9238766B2Comb-like polyetheralkanolamines in inks and coatingsNGUYEN DUY T·Filed 2006·Granted Jan 19, 2016·0 cites·14 claims
- 4355US3988302APolyurethanes prepared by reaction of organic polyisocyanate with brominated ester-containing polyolsTEXACO DEVELOPMENT CORP·Filed 1974·Granted Oct 26, 1976·7 cites·5 claims
- 4453US6855795B2Catalyst removal processHUNTSMAN SPEC CHEM CORP·Filed 2004·Granted Feb 15, 2005·2 cites·8 claims
- 4552US6479593B2Absorbent polymer modificationHUNTSMAN SPEC CHEM CORP·Filed 2001·Granted Nov 12, 2002·2 cites·19 claims
- 4650US11015015B2Co-preparation of polyetheramines and alklyene aminesHUNTSMAN PETROCHEMICAL LLC·Filed 2016·Granted May 25, 2021·0 cites·8 claims
- 4750US10301489B2Comb polyurethane dispersantsHUNTSMAN PETROCHEMICAL LLC·Filed 2015·Granted May 28, 2019·0 cites·9 claims
- 4850US4226971APhenol-aldehyde condensation product with aminoalkylene derivative of a polyoxyalkylenepolyamineTEXACO DEVELOPMENT CORP·Filed 1979·Granted Oct 7, 1980·6 cites·5 claims
- 4950US2011009670A1Cyclohexanedimethanamine by direct amination of cyclohexanedimethanolHUNTSMAN PETROCHEMICAL LLC·Filed 2009·Application pending·0 cites
- 5048US4102828APolyurethanes derived from novel novolak polyolsTEXACO DEVELOPMENT CORP·Filed 1976·Granted Jul 25, 1978·6 cites·18 claims
Showing the top 50 of 67 patent records by PatentIndex Score.
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