P

Inventor

ENGLAND DAVID C

US17 patents

Patents

17 patents
US4138426AFeb 6, 1979

Alkyl perfluoro-ω-fluoroformyl esters and monomers therefrom

DU PONT93 citations95
US4131740ADec 26, 1978

Alkyl perfluoro-ω-fluoroformyl esters and their preparation

DU PONT42 citations95
US4357282ANov 2, 1982

Preparation of fluorocarbonyl compounds

DU PONT127 citations93
US4594399AJun 10, 1986

Cyclic monomers derived from trifluoropyruvate esters, amended to polymers and polymer films from dioxoles

DU PONT31 citations92
US4565855AJan 21, 1986

Polymers of dioxolanes

DU PONT36 citations92
US3944347AMar 16, 1976

Contact lens having a hard center and soft, tough periphery

DU PONT87 citations92
US4429143AJan 31, 1984

Cyclic monomers derived from trifluoropyruvate esters

DU PONT20 citations81
US4138430AFeb 6, 1979

Process for ammoxidation of 1-propanol

DU PONT22 citations81
US4487668ADec 11, 1984

Fluorinated ion exchange polymer containing carboxylic groups, and film and membrane thereof

DU PONT10 citations74
US4496750AJan 29, 1985

Cyclic monomers derived from trifluoropyruvate esters

DU PONT16 citations73
US4206138AJun 3, 1980

Perfluoroallyl fluorosulfate and its sultone and polymers

DU PONT7 citations73
US4137271AJan 30, 1979

Process for oxidation of 1-propanol

DU PONT8 citations73
US4247713AJan 27, 1981

Alkyl perfluoro-ω-fluoroformyl esters and their preparation

DU PONT3 citations62
US4316986AFeb 23, 1982

Preparation of difluoromalonyl fluoride

DU PONT5 citations57
US4608206AAug 26, 1986

Fluorinated 3-ketoglutaroyl halides

DU PONT0 citations52
US4299949ANov 10, 1981

Fluorinated 3-ketoglutaroyl halides and polymers therefrom

DU PONT1 citations52
US4001319AJan 4, 1977

Process for the preparation of carbacyl halosulfates

DU PONT0 citations52