P

Inventor

LAI JOHN T

US64 patents
⚠️ This page may combine multiple inventors who share the name “LAI JOHN T”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

GOODRICH CO B F

46 patents
US5071981ADec 10, 1991

Alkylated oxo-piperanzinyl-triazine

GOODRICH CO B F52 citations95
US6204412B1Mar 20, 2001

Method of manufacturing alkylated diphenylamine compositions and products thereof

GOODRICH CO B F32 citations93
US5489711AFeb 6, 1996

Synthetic lubricant antioxidant from monosubstituted diphenylamines

GOODRICH CO B F28 citations93
US4466915AAug 21, 1984

Non-catalytic ketoform syntheses

GOODRICH CO B F27 citations93
US4310429AJan 12, 1982

Stabilized polymers, novel stabilizers, and synthesis thereof

GOODRICH CO B F33 citations93
US4167512ASep 11, 1979

Synthesis of 2-keto-1,4-diazacycloalkanes

GOODRICH CO B F31 citations93
US5750787AMay 12, 1998

Liquid alkylated diphenylamine antioxidant

GOODRICH CO B F27 citations92
US5672752ASep 30, 1997

Liquid alkylated diphenylamine antioxidant

GOODRICH CO B F33 citations92
US4797438AJan 10, 1989

Stabilized gamma-irradiated polypropylene and sterilizable articles thereof

GOODRICH CO B F27 citations92
US4722806AFeb 2, 1988

Alkylated polyalkylenepolyamines, substituted oxo-piperazinyl-triazines and UV light stabilized compositions

GOODRICH CO B F31 citations92
US4639479AJan 27, 1987

Polyalkylenepolyamine having pendant substituted oxo-piperazinyltriazines and UV light stabilized compositions

GOODRICH CO B F27 citations92
US4629752ADec 16, 1986

Substituted oxo-piperazinyl-triazines and UV light stabilized compositions

GOODRICH CO B F45 citations92
US4547538AOct 15, 1985

Alkylated polyalkylenepolyamines, substituted oxo-piperazinyl-triazines and UV light stabilized compositions

GOODRICH CO B F36 citations92
US4480092AOct 30, 1984

Alkylated polyalkylenepolyamines, substituted oxo-piperazinyl-triazines

GOODRICH CO B F51 citations92
US4292240ASep 29, 1981

2-Keto-1,4-diazacycloalkanes

GOODRICH CO B F38 citations92
US4190571AFeb 26, 1980

Substituted 2-keto-1,4-diazacycloalkanes and UV-light-stabilized compositions containing them

GOODRICH CO B F43 citations92
US5122593AJun 16, 1992

Stabilized gamma-irradiatable polypropylene fibers and sterilizable articles thereof

GOODRICH CO B F30 citations86
US4698446AOct 6, 1987

Synthesis of polyamines and mixture formed thereby, of diprimary polyalkylene polyamines with disubstituted N-adjacent terminal carbon atom(s)

GOODRICH CO B F23 citations82
US4240961ADec 23, 1980

Synthesis of 2-piperazinones and 1,4-diaza-2-keto-cycloheptanes

GOODRICH CO B F24 citations82
US5189173AFeb 23, 1993

Alkylated polyalkylene polyamines and process for selective alkylation

GOODRICH CO B F7 citations74
US5013836AMay 7, 1991

Process for methylating a hindered nitrogen atom in a polysubstituted diazacycloalkan-2-one

GOODRICH CO B F9 citations74
US5010179AApr 23, 1991

Process for the preparation of mixed, symmetrical azonitrile dicarboxylic dicyano acids and initiators

GOODRICH CO B F15 citations74
US4780495AOct 25, 1988

N-(substituted)-α-(3,5-dialkyl-4-hydroxyphenyl)-α,α-disubstituted acetamides, and composition stabilized therewith

GOODRICH CO B F14 citations74
US4711957ADec 8, 1987

Synthesis of 2-keto-1,4-diazacycloalkanes

GOODRICH CO B F18 citations74
US4601839AJul 22, 1986

Stabilized polymers, novel stabilizers, and synthesis thereof

GOODRICH CO B F7 citations74
US4500662AFeb 19, 1985

Polysubstituted α-aminoacetamides

GOODRICH CO B F17 citations74
US4477665AOct 16, 1984

Substituted 2-keto-1,4-diazacycloalkanes

GOODRICH CO B F14 citations74
US4466916AAug 21, 1984

Substituted 2-keto-1,4-diazacycloalkanes

GOODRICH CO B F9 citations74
US4455401AJun 19, 1984

2-Keto-diazacycloalkane-urethane oligomers and U-V light stabilized compositions

GOODRICH CO B F10 citations74
US4304712ADec 8, 1981

Method for extending the useful life of dienic polymers which are sensitive to oxidative degradation and stabilized compositions resistant to oxidative degradation

GOODRICH CO B F17 citations74
US4298737ANov 3, 1981

Piperdinyl substituted 1,4-diaza-2-cycloalkanones and derivatives thereof

GOODRICH CO B F8 citations74
US4297497AOct 27, 1981

Synthesis of 2-keto-1,4-diazacycloalkanes

GOODRICH CO B F14 citations74
US4251435AFeb 17, 1981

High molecular weight piperidine derivatives as UV stabilizers

GOODRICH CO B F14 citations74
US4246412AJan 20, 1981

Synthesis of 2-keto-1,4-diazacycloalkanes with a soft ion catalyst

GOODRICH CO B F10 citations74
US4207228AJun 10, 1980

UV-Light-stabilized compositions containing substituted 1,5-diazacycloalkanes, novel compounds and synthesis thereof

GOODRICH CO B F14 citations74
US4929653AMay 29, 1990

Stabilized pigmented polypropylene fiber resistant to gas fade

GOODRICH CO B F17 citations73
US5321159AJun 14, 1994

Decolorization of alkylated diarylamines

GOODRICH CO B F6 citations71
US5096949AMar 17, 1992

N,N-disubstituted, α-(3,5-dialkyl-4-hydroxyphenyl)-α,α-disubstituted acetamides and composition stabilized therewith

GOODRICH CO B F5 citations63
US5089614AFeb 18, 1992

Polysubstituted 2-morpholones

GOODRICH CO B F6 citations63
US5037963AAug 6, 1991

Process for the preparation of symmetrical azo-dinitrile, dicarboxylic acids from keto acids

GOODRICH CO B F4 citations63
US5010178AApr 23, 1991

Process for the preparation of mixed azonitrile carboxylic acid initiators

GOODRICH CO B F4 citations63
US4692487ASep 8, 1987

1,2-ethanediyl-bis-2-piperazinone esters, oligomers thereof, and compositions stabilized thereby

GOODRICH CO B F6 citations63
US4675353AJun 23, 1987

Hindered 2-keto-1,4-diazacycloalkane oligomers containing triazine rings and compositions stabilized thereby

GOODRICH CO B F3 citations63
US4650903AMar 17, 1987

Oligomeric amides as synergists for antioxidants and UV stabilizers

GOODRICH CO B F5 citations63
US4496772AJan 29, 1985

Preparation of nitroalcohols

GOODRICH CO B F5 citations63
US4473694ASep 25, 1984

Process for the preparation of polysubstituted α-aminoacetamides

GOODRICH CO B F3 citations63

NOVEON IP HOLDINGS CORP

2 patents

LUBRIZOL ADVANCED MAT INC

1 patent

LAI JOHN T

1 patent

Showing the top 50 of 64 patents by PatentIndex Score.