Inventor
CAMPBELL ROBERT W
US49 patents
⚠️ This page may combine multiple inventors who share the name “CAMPBELL ROBERT W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHILLIPS PETROLEUM CO
28 patentsUS4038263AJul 26, 1977
Production of p-phenylene sulfide polymers
PHILLIPS PETROLEUM CO57 citations96
US3936426AFeb 3, 1976
Amorphous, optically clear polyamide from a bis(4-aminocyclohexyl)methane and a phenylindan dicarboxylic acid
PHILLIPS PETROLEUM CO63 citations96
US4127713ANov 28, 1978
Aromatic sulfide/sulfone polymer production
PHILLIPS PETROLEUM CO42 citations93
US4039518AAug 2, 1977
Production of p-phenylene sulfide polymers
PHILLIPS PETROLEUM CO42 citations93
US4038260AJul 26, 1977
Production of p-phenylene sulfide polymers
PHILLIPS PETROLEUM CO41 citations93
US4016145AApr 5, 1977
Production of aromatic sulfide/sulfone polymers
PHILLIPS PETROLEUM CO47 citations93
US4089847AMay 16, 1978
Temperature programming in the production of arylene sulfide polymers
PHILLIPS PETROLEUM CO36 citations92
US4038259AJul 26, 1977
Production of p-phenylene sulfide polymers
PHILLIPS PETROLEUM CO38 citations92
US4028476AJun 7, 1977
Transparent polyamide armor
PHILLIPS PETROLEUM CO35 citations87
US4301274ANov 17, 1981
Aromatic sulfide/sulfone polymer production
PHILLIPS PETROLEUM CO27 citations82
US4102875AJul 25, 1978
Aromatic sulfide/sulfone polymer production
PHILLIPS PETROLEUM CO22 citations82
US4299951ANov 10, 1981
Treating shaped arylene sulfide/sulfone polymer with organic liquid at elevated temperature
PHILLIPS PETROLEUM CO12 citations74
US4212965AJul 15, 1980
Polyamides with elastomeric character from 5-methylnonamethylene diamine
PHILLIPS PETROLEUM CO9 citations74
US4125525ANov 14, 1978
Aromatic sulfide/sulfone polymer production
PHILLIPS PETROLEUM CO10 citations74
US4107150AAug 15, 1978
High impact terephthalate copolyesters using 1,4-butanediol and 1,4-cyclohexanedimethanol
PHILLIPS PETROLEUM CO16 citations74
US4051087ASep 27, 1977
Copolyamide
PHILLIPS PETROLEUM CO9 citations74
US3966688AJun 29, 1976
Arylene sulfide copolymer production
PHILLIPS PETROLEUM CO13 citations74
US5039788AAug 13, 1991
Melt stable phenylene sulfide/sulfone polymers and method
PHILLIPS PETROLEUM CO6 citations73
US4024118AMay 17, 1977
P-Phenylene sulfide polymers
PHILLIPS PETROLEUM CO11 citations73
US5296579AMar 22, 1994
Arylene sulfide polymers
PHILLIPS PETROLEUM CO19 citations72
US3940375AFeb 24, 1976
Arylene sulfide polymers
PHILLIPS PETROLEUM CO8 citations72
US3980621ASep 14, 1976
Polyamides of terephthalic acid and 5-methyl-1,9-nonanediamine and fibers thereof
PHILLIPS PETROLEUM CO11 citations71
US4212964AJul 15, 1980
Normally solid, moldable polyamide from branched chain diamine and aliphatic dicarboxylic acid
PHILLIPS PETROLEUM CO2 citations63
US4187371AFeb 5, 1980
Formation of terephthalamide polymer of 5-methyl-1,9-nonanediamine
PHILLIPS PETROLEUM CO5 citations63
US4172194AOct 23, 1979
Producing fiber grade polyamide from terephthalic acid and 5-methyl-1,9-nonanediamine
PHILLIPS PETROLEUM CO3 citations63
US4070349AJan 24, 1978
Aromatic sulfide/sulfone polymer production
PHILLIPS PETROLEUM CO3 citations63
US4293688AOct 6, 1981
Polyamides of 1,4-cyclohexane dicarboxylic acid and 5-methyl-1,9-nonanediamine and fibers thereof
PHILLIPS PETROLEUM CO6 citations60
US5075420ADec 24, 1991
Melt stable phenylene sulfide/sulfone polymers and method
PHILLIPS PETROLEUM CO0 citations52
CHEVRON RES
8 patentsUS4376830AMar 15, 1983
Sulfur cement-aggregate-organosilane compositions and methods for preparing
CHEVRON RES53 citations94
US3997355ADec 14, 1976
Sulfur composition
CHEVRON RES38 citations90
US4496659AJan 29, 1985
Sulfur cement-aggregate compositions and methods for preparing
CHEVRON RES26 citations80
US4383821AMay 17, 1983
Automatic shutoff for sulfur melter apparatus
CHEVRON RES5 citations63
US4198245AApr 15, 1980
Process for producing concrete structures of high strength
CHEVRON RES5 citations62
US4193809AMar 18, 1980
High-strength concrete objects
CHEVRON RES4 citations62
US4332911AJun 1, 1982
Sulfur cement-aggregate compositions and methods for preparing
CHEVRON RES4 citations61
US4139663AFeb 13, 1979
Process for applying a smooth coating of plasticized sulfur composition
CHEVRON RES0 citations52
GEN MOTORS CORP
4 patentsUS4780619AOct 25, 1988
High DC voltage power supply for motor vehicle electrical system
GEN MOTORS CORP42 citations92
US4730097AMar 8, 1988
Dual mode windshield heater control
GEN MOTORS CORP42 citations92
US4491779AJan 1, 1985
Motor vehicle electrical system
GEN MOTORS CORP37 citations92
US4947053AAug 7, 1990
High DC voltage power supply for motor vehicle electrical system
GEN MOTORS CORP14 citations73
(unassigned)
3 patentsINSULET CORP
2 patentsUS10441717B2Oct 15, 2019
Monitoring a physiological parameter associated with tissue of a host to confirm delivery of medication
INSULET CORP16 citations88
US11383034B2Jul 12, 2022
Monitoring a physiological parameter associated with tissue of a host to confirm delivery of medication
INSULET CORP0 citations57