Inventor · disambiguated record
John T. Lai
Also filed as: LAI JOHN · LAI JOHN T · LAI JOHN TA-YUAN
95 granted patents·7 pending applications·1,244 citations·filing 1977–2021
99Inventor score
Files withGOODRICH CO B F63LUBRIZOL ADVANCED MAT INC23LAI JOHN TA-YUAN5NOVEON IP HOLDINGS CORP4KLETECKA GEORGE1
Top patents by PatentIndex Score
102 records- 0198US6596899B1S,S′BIS-(α, α′-DISUBSTITUTED-α″-ACETIC ACID)- TRITHIOCARBONATES AND DERIVATIVES AS INITIATOR-CHAIN TRANSFER AGENT-TERMINATOR FOR CONTROLLED RADICAL POLYMERIZATIONS AND THE PROCESS FOR MAKING THE SAMENOVEON IP HOLDINGS CORP·Filed 2000·Granted Jul 22, 2003·63 cites·3 claims
- 0296US4480092AAlkylated polyalkylenepolyamines, substituted oxo-piperazinyl-triazinesGOODRICH CO B F·Filed 1982·Granted Oct 30, 1984·51 cites·13 claims
- 0396US4292240A2-Keto-1,4-diazacycloalkanesGOODRICH CO B F·Filed 1979·Granted Sep 29, 1981·38 cites·2 claims
- 0496US4190571ASubstituted 2-keto-1,4-diazacycloalkanes and UV-light-stabilized compositions containing themGOODRICH CO B F·Filed 1977·Granted Feb 26, 1980·43 cites·19 claims
- 0595US4547538AAlkylated polyalkylenepolyamines, substituted oxo-piperazinyl-triazines and UV light stabilized compositionsGOODRICH CO B F·Filed 1984·Granted Oct 15, 1985·36 cites·11 claims
- 0695US4310429AStabilized polymers, novel stabilizers, and synthesis thereofGOODRICH CO B F·Filed 1978·Granted Jan 12, 1982·33 cites·35 claims
- 0795US4167512ASynthesis of 2-keto-1,4-diazacycloalkanesGOODRICH CO B F·Filed 1978·Granted Sep 11, 1979·31 cites·3 claims
- 0893US4240961ASynthesis of 2-piperazinones and 1,4-diaza-2-keto-cycloheptanesGOODRICH CO B F·Filed 1979·Granted Dec 23, 1980·24 cites·9 claims
- 0992US6426324B1Lubricant compositionNOVEON IP HOLDINGS CORP·Filed 2000·Granted Jul 30, 2002·47 cites·33 claims
- 1092US5071981AAlkylated oxo-piperanzinyl-triazineGOODRICH CO B F·Filed 1990·Granted Dec 10, 1991·52 cites·3 claims
- 1192US4466915ANon-catalytic ketoform synthesesGOODRICH CO B F·Filed 1982·Granted Aug 21, 1984·27 cites·11 claims
- 1291US4722806AAlkylated polyalkylenepolyamines, substituted oxo-piperazinyl-triazines and UV light stabilized compositionsGOODRICH CO B F·Filed 1985·Granted Feb 2, 1988·31 cites·12 claims
- 1391US4629752ASubstituted oxo-piperazinyl-triazines and UV light stabilized compositionsGOODRICH CO B F·Filed 1985·Granted Dec 16, 1986·45 cites·20 claims
- 1490US7423082B2Associative thickeners for aqueous systemsLUBRIZOL ADVANCED MAT INC·Filed 2005·Granted Sep 9, 2008·10 cites·26 claims
- 1589US10640616B2Waterborne polyamide and their chain extension with isocyanates to form cationic waterborne polyureas dispersionsLUBRIZOL ADVANCED MAT INC·Filed 2015·Granted May 5, 2020·2 cites·20 claims
- 1687US8137754B2Hydroxyl-terminated thiocarbonate containing compounds, polymers, and copolymers, and polyurethanes and urethane acrylics made therefromLAI JOHN TA-YUAN·Filed 2005·Granted Mar 20, 2012·10 cites·16 claims
- 1787US7279591B2S,s′-bis-(α, α′-disubstituted-α′-acetic acid)-trithiocarbonates and derivatives as initiator—chain transfer agent—terminator for controlled radical polymerizations and the process for making the sameLUBRIZOL ADVANCED MAT INC·Filed 2005·Granted Oct 9, 2007·5 cites·5 claims
- 1887US4698446ASynthesis of polyamines and mixture formed thereby, of diprimary polyalkylene polyamines with disubstituted N-adjacent terminal carbon atom(s)GOODRICH CO B F·Filed 1986·Granted Oct 6, 1987·23 cites·6 claims
- 1987US4500662APolysubstituted α-aminoacetamidesGOODRICH CO B F·Filed 1982·Granted Feb 19, 1985·17 cites·5 claims
- 2087US4297497ASynthesis of 2-keto-1,4-diazacycloalkanesGOODRICH CO B F·Filed 1979·Granted Oct 27, 1981·14 cites·5 claims
- 2186US9988555B2Water-borne polyamide-urea dispersionsLUBRIZOL ADVANCED MAT INC·Filed 2014·Granted Jun 5, 2018·4 cites·19 claims
- 2286US7498456B2S-(α, α′-disubstituted-α″-acetic acid) substituted dithiocarbonate derivatives for controlled radical polymerization, process and polymers made therefromLUBRIZOL ADVANCED MAT INC·Filed 2007·Granted Mar 3, 2009·5 cites·11 claims
- 2386US6962961B2S,S′-BIS-(α, α′-DISUBSTITUTED-α-ACETIC ACID)-TRITHIOCARBONATES AND DERIVATIVES AS INITIATOR-CHAIN TRANSFER AGENT-TERMINATOR FOR CONTROLLED RADICAL POLYMERIZATIONS AND THE PROCESS FOR MAKING THE SAMENOVEON IP HOLDINGS CORP·Filed 2003·Granted Nov 8, 2005·15 cites·16 claims
- 2486US4251435AHigh molecular weight piperidine derivatives as UV stabilizersGOODRICH CO B F·Filed 1979·Granted Feb 17, 1981·14 cites·16 claims
- 2586US4207228AUV-Light-stabilized compositions containing substituted 1,5-diazacycloalkanes, novel compounds and synthesis thereofGOODRICH CO B F·Filed 1977·Granted Jun 10, 1980·14 cites·16 claims
- 2685US9527961B2Telechelic N-alkylated polyamide polymers and copolymersLUBRIZOL ADVANCED MAT INC·Filed 2014·Granted Dec 27, 2016·3 cites·19 claims
- 2785US4477665ASubstituted 2-keto-1,4-diazacycloalkanesGOODRICH CO B F·Filed 1981·Granted Oct 16, 1984·14 cites·2 claims
- 2882US7495128B2S-S′-bis-(α, α′-Disubstituted-α″-acetic acid)—trithiocarbonates and derivatives as initiator—chain transfer agent—terminator for controlled radical polymerizations and the process for making the sameLUBRIZOL ADVANCED MAT INC·Filed 2007·Granted Feb 24, 2009·3 cites·9 claims
- 2982US4528370APolysubstituted 2-morpholonesLAI JOHN T·Filed 1982·Granted Jul 9, 1985·15 cites·2 claims
- 3081US8901223B2Polymers derived from itaconic acidLAI JOHN TA-YUAN·Filed 2011·Granted Dec 2, 2014·4 cites·21 claims
- 3181US5489711ASynthetic lubricant antioxidant from monosubstituted diphenylaminesGOODRICH CO B F·Filed 1994·Granted Feb 6, 1996·28 cites·15 claims
- 3281US4639479APolyalkylenepolyamine having pendant substituted oxo-piperazinyltriazines and UV light stabilized compositionsGOODRICH CO B F·Filed 1985·Granted Jan 27, 1987·27 cites·6 claims
- 3381US4246412ASynthesis of 2-keto-1,4-diazacycloalkanes with a soft ion catalystGOODRICH CO B F·Filed 1979·Granted Jan 20, 1981·10 cites·8 claims
- 3480US5010179AProcess for the preparation of mixed, symmetrical azonitrile dicarboxylic dicyano acids and initiatorsGOODRICH CO B F·Filed 1989·Granted Apr 23, 1991·15 cites·23 claims
- 3580US4797438AStabilized gamma-irradiated polypropylene and sterilizable articles thereofGOODRICH CO B F·Filed 1987·Granted Jan 10, 1989·27 cites·9 claims
- 3679US6204412B1Method of manufacturing alkylated diphenylamine compositions and products thereofGOODRICH CO B F·Filed 1999·Granted Mar 20, 2001·32 cites·18 claims
- 3778US5122593AStabilized gamma-irradiatable polypropylene fibers and sterilizable articles thereofGOODRICH CO B F·Filed 1989·Granted Jun 16, 1992·30 cites·10 claims
- 3877US8492576B2Hydroxyl-terminated thiocarbonate containing compounds, polymers, and copolymers, and polyurethanes and urethane acrylics made therefromLAI JOHN TA-YUAN·Filed 2009·Granted Jul 23, 2013·3 cites·7 claims
- 3977US6281311B1Controlled free radical polymerization processPMD HOLDINGS CORP·Filed 1997·Granted Aug 28, 2001·41 cites·93 claims
- 4077US4298737APiperdinyl substituted 1,4-diaza-2-cycloalkanones and derivatives thereofGOODRICH CO B F·Filed 1979·Granted Nov 3, 1981·8 cites·6 claims
- 4176US6894116B2S,S′-bis-(α, α′—disubstituted—α″—acetic acid)—trithiocarbonates and polymers thereof for toughening thermosetting resinsNOVEON IP HOLDINGS CORP·Filed 2002·Granted May 17, 2005·11 cites·22 claims
- 4276US4304712AMethod for extending the useful life of dienic polymers which are sensitive to oxidative degradation and stabilized compositions resistant to oxidative degradationGOODRICH CO B F·Filed 1978·Granted Dec 8, 1981·17 cites·8 claims
- 4374US10174140B2Non-halogen flame retardant polymersLUBRIZOL ADVANCED MAT INC·Filed 2014·Granted Jan 8, 2019·1 cites·17 claims
- 4473US7851582B2S-(α, α′-disubstituted-α″-acetic acid)—substituted dithiocarbonate derivatives for controlled radical polymerizations, process and polymers made therefromLUBRIZOL ADVANCED MAT INC·Filed 2008·Granted Dec 14, 2010·1 cites·23 claims
- 4573US5750787ALiquid alkylated diphenylamine antioxidantGOODRICH CO B F·Filed 1996·Granted May 12, 1998·27 cites·11 claims
- 4673US4711957ASynthesis of 2-keto-1,4-diazacycloalkanesGOODRICH CO B F·Filed 1981·Granted Dec 8, 1987·18 cites·3 claims
- 4772US5672752ALiquid alkylated diphenylamine antioxidantGOODRICH CO B F·Filed 1995·Granted Sep 30, 1997·33 cites·12 claims
- 4872US5013836AProcess for methylating a hindered nitrogen atom in a polysubstituted diazacycloalkan-2-oneGOODRICH CO B F·Filed 1989·Granted May 7, 1991·9 cites·21 claims
- 4972US2021355253A1Itaconic acid polymersLUBRIZOL ADVANCED MAT INC·Filed 2021·Application pending·0 cites
- 5071US4914232APolysubstituted 2-morpholones, related compounds, processes for their preparation, and U-V light stabilized compositionsGOODRICH CO B F·Filed 1987·Granted Apr 3, 1990·9 cites·3 claims
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