P

Inventor

STEPHENS JAMES R

US21 patents
⚠️ This page may combine multiple inventors who share the name “STEPHENS JAMES R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

STANDARD OIL CO INDIANA

17 patents
US4358561ANov 9, 1982

Injection moldable amide-imide copolymers

STANDARD OIL CO INDIANA30 citations92
US4048144ASep 13, 1977

Preparation of solid polymers from aromatic primary diamine and acyl halide of trimellitic anhydride

STANDARD OIL CO INDIANA32 citations92
US4476295AOct 9, 1984

Poly-imide-oxadiazole soluble in m-cresol

STANDARD OIL CO INDIANA22 citations82
US4429108AJan 31, 1984

Poly[N,N'-(alkyl or aryl)-bis(4,4'-phthalimido)-1,3,4-oxadiazole-2,5-diyls]

STANDARD OIL CO INDIANA22 citations82
US4309528AJan 5, 1982

Injection moldable amide-imide copolymers

STANDARD OIL CO INDIANA22 citations81
US4500701AFeb 19, 1985

Co-polyoxadiazoles based on 5-t-butylisosphthalic acid

STANDARD OIL CO INDIANA8 citations73
US4348513ASep 7, 1982

Injection moldable amide-imide copolymers and terpolymers

STANDARD OIL CO INDIANA9 citations73
US4291149ASep 22, 1981

Injection moldable amide imide copolymers and terpolymers

STANDARD OIL CO INDIANA8 citations73
US4045407AAug 30, 1977

Process for preparing amideimide polymers in the presence of alcoholic solvent

STANDARD OIL CO INDIANA11 citations73
US4042750AAug 16, 1977

Products and process for preparation of polyamides and shaped articles therefrom

STANDARD OIL CO INDIANA9 citations73
US3959233AMay 25, 1976

Process for preparing polyamide-imide from trimellitic acid, diamine and diisocyanate and polyamide imide shaped articles

STANDARD OIL CO INDIANA13 citations73
US4501880AFeb 26, 1985

Copolyoxadiazole-imide containing 5-tertiary butyl phenylene moiety

STANDARD OIL CO INDIANA2 citations62
US4487921ADec 11, 1984

Polyoxadiazole from 5-t-butylisophthalic acid

STANDARD OIL CO INDIANA3 citations62
US4323493AApr 6, 1982

Injection moldable amide-imide polymers contaning divalent aliphatic radicals derived from aliphatic diamines

STANDARD OIL CO INDIANA4 citations62
US4321357AMar 23, 1982

Injection moldable amide-imide polymers containing divalent aliphatic radicals derived from aliphatic diamines

STANDARD OIL CO INDIANA2 citations62
US4012556AMar 15, 1977

Self-bonding varnish for magnet wires comprising a polyalkylenetrimellitate ester imide

STANDARD OIL CO INDIANA4 citations62
US4271311AJun 2, 1981

Esterification of phenol catalyzed with a strong base plus boron

STANDARD OIL CO INDIANA5 citations61

GEN MILLS PROD CORP

1 patent

AMOCO CORP

1 patent

PHILLIPS PETROLEUM CO

1 patent

GENERAL MILLS PRODUCTS CORP

1 patent