P

Inventor

CHOE EUI W

US58 patents
⚠️ This page may combine multiple inventors who share the name “CHOE EUI W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CELANESE CORP

30 patents
US4423202ADec 27, 1983

Process for the production of high molecular weight para ordered aromatic heterocyclic polymer

CELANESE CORP63 citations96
US4452971AJun 5, 1984

Production of improved high molecular weight polybenzimidazole with tin containing catalyst

CELANESE CORP31 citations93
US4312976AJan 26, 1982

Single-stage melt polymerization process for the production of high molecular weight polybenzimidazole

CELANESE CORP52 citations93
US4659177AApr 21, 1987

Organic nonlinear optical media

CELANESE CORP28 citations92
US4162346AJul 24, 1979

High performance wholly aromatic polyamide fibers

CELANESE CORP35 citations87
US4707303ANov 17, 1987

High performance nonlinear optical substrates

CELANESE CORP24 citations82
US4694048ASep 15, 1987

Thermoplastic polymers containing repeating hydrazide groups

CELANESE CORP18 citations82
US4605869AAug 12, 1986

Polyacetylenic compositions

CELANESE CORP23 citations82
US4579915AApr 1, 1986

Polybenzimidazole polymers exhibiting nonlinear optical effects

CELANESE CORP22 citations82
US4506068AMar 19, 1985

Two stage high molecular weight polybenzimidazole production with phosphorus containing catalyst

CELANESE CORP20 citations82
US4483977ANov 20, 1984

High molecular weight polybenzimidazoles

CELANESE CORP20 citations82
US4452993AJun 5, 1984

Anisotropic heat-curable acrylic-terminated monomers

CELANESE CORP23 citations81
US4603187AJul 29, 1986

Polyacetylenic compositions

CELANESE CORP8 citations74
US4535144AAug 13, 1985

Synthesis of high molecular weight polybenzimidazole with arylhalo phosphorus compound catalyst

CELANESE CORP14 citations74
US4463167AJul 31, 1984

Two stage high molecular weight polybenzimidazole production with phosphorus containing catalyst

CELANESE CORP17 citations74
US4452972AJun 5, 1984

Production of high molecular weight polybenzimidazole with aryl phosphonic acid or aryl phosphinic acid catalyst

CELANESE CORP9 citations74
US4448955AMay 15, 1984

Production of improved high molecular weight polybenzimidazole with tin containing catalyst

CELANESE CORP6 citations74
US4431796AFeb 14, 1984

Single stage production of improved high molecular weight polybenzimidazole with organo silicon halide catalyst

CELANESE CORP10 citations74
US4265802AMay 5, 1981

Polyester of para-hydroxy benzoic acid, 1,4-bis(para-carboxyphenoxy) benzene, aromatic diol and aromatic diacid capable of undergoing melt processing

CELANESE CORP18 citations74
US4452967AJun 5, 1984

High molecular weight polybenzimidazole preparation with phosphorus containing catalyst

CELANESE CORP9 citations73
US4440945AApr 3, 1984

Anisotropic heat-curable acetylene-terminated monomers and thermoset resins produced therefrom

CELANESE CORP10 citations73
US4707305ANov 17, 1987

Naphthoquinodimethane compositions

CELANESE CORP5 citations63
US4703096AOct 27, 1987

Novel diacetylenic and polydiacetylenic compositions

CELANESE CORP5 citations63
US4485232ANov 27, 1984

Two stage melt production of high molecular weight polybenzimidazoles with phosphorous catalyst

CELANESE CORP5 citations63
US4448954AMay 15, 1984

Single stage production of improved high molecular weight polybenzimidazole with organosilicon halide catalyst.

CELANESE CORP4 citations63
US4245084AJan 13, 1981

Thermotropic, wholly aromatic polythiolesters capable of forming an anisotropic melt and a process for preparing the polythiolesters

CELANESE CORP3 citations63
US4130702ADec 19, 1978

Polyacryloylaminobenzoic acid, polymethacryloylaminobenzoic acid and method of preparation

CELANESE CORP5 citations63
US4514553AApr 30, 1985

Thermoset resin produced from anisotropic heat-curable acrylic-terminated monomers

CELANESE CORP5 citations62
US4414383ANov 8, 1983

High molecular weight polybenzimidazole preparation with phosphorus containing polymerization catalyst

CELANESE CORP6 citations62
US4160755AJul 10, 1979

Process for producing anisotropic dopes and articles thereof from benzoic acid derivative polymers

CELANESE CORP4 citations61

HOECHST CELANESE CORP

18 patents
US4719281AJan 12, 1988

Pendant quinodimethane-containing polymer

HOECHST CELANESE CORP18 citations82
US4711532ADec 8, 1987

Novel diacetylenic and polydiacetylenic compositions

HOECHST CELANESE CORP18 citations82
US5298591AMar 29, 1994

Non-crystalline wholly aromatic polyesters

HOECHST CELANESE CORP11 citations74
US4914175AApr 3, 1990

Injection moldable polyimides

HOECHST CELANESE CORP8 citations74
US4773743ASep 27, 1988

Electrooptic light modulator device

HOECHST CELANESE CORP6 citations74
US4774025ASep 27, 1988

Nonlinear optical medium of a naphthoquinodimethane compound

HOECHST CELANESE CORP14 citations74
US4755574AJul 5, 1988

Acrylic polymers exhibiting chiral and nonlinear optical properties

HOECHST CELANESE CORP11 citations74
US4732783AMar 22, 1988

Organic nonlinear optical media

HOECHST CELANESE CORP10 citations74
US5453321ASep 26, 1995

High molecular weight copolyesters for high modulus fibers

HOECHST CELANESE CORP7 citations73
US5045625ASep 3, 1991

Thermosetting polyimide prepolymers

HOECHST CELANESE CORP3 citations63
US4983325AJan 8, 1991

High performance nonlinear optical media

HOECHST CELANESE CORP6 citations63
US4938896AJul 3, 1990

High performance nonlinear optical media

HOECHST CELANESE CORP6 citations63
US4824219AApr 25, 1989

Hydrazide-containing thermoplastic polymers exhibiting nonlinear optical response

HOECHST CELANESE CORP3 citations63
US4818802AApr 4, 1989

Hydrazide-containing thermoplastic polymers exhibiting nonlinear optical response

HOECHST CELANESE CORP4 citations63
US4804255AFeb 14, 1989

Acrylic polymers exhibiting chiral and nonlinear optical properties

HOECHST CELANESE CORP4 citations63
US4783151ANov 8, 1988

Devices utilizing pendant quinodimethane-containing polymers

HOECHST CELANESE CORP6 citations63
US5256760AOct 26, 1993

Condensation copolymers with sequenced mer structure

HOECHST CELANESE CORP6 citations61
US5624754AApr 29, 1997

Rubber-polyester composites including a sidechain containing copolyester

HOECHST CELANESE CORP5 citations58

BASF FUEL CELL

1 patent

DELANESE CORP

1 patent

Showing the top 50 of 58 patents by PatentIndex Score.