Inventor
WALKER DARRELL W
US26 patents
⚠️ This page may combine multiple inventors who share the name “WALKER DARRELL W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHILLIPS PETROLEUM CO
17 patentsUS4484015ANov 20, 1984
Selective hydrogenation
PHILLIPS PETROLEUM CO122 citations96
US4404124ASep 13, 1983
Selective hydrogenation catalyst
PHILLIPS PETROLEUM CO127 citations96
US4176140ANov 27, 1979
Dehydrogenation of hydrocarbons with zinc titanate catalyst
PHILLIPS PETROLEUM CO44 citations93
US4794095ADec 27, 1988
Catalytic cracking catalyst
PHILLIPS PETROLEUM CO30 citations92
US4144277AMar 13, 1979
Dehydrogenation of hydrocarbons with zinc titanate catalyst
PHILLIPS PETROLEUM CO46 citations92
US4765884AAug 23, 1988
Cracking catalyst and process
PHILLIPS PETROLEUM CO25 citations91
US4873211AOct 10, 1989
Cracking catalyst and process
PHILLIPS PETROLEUM CO29 citations86
US4846960AJul 11, 1989
Catalytic cracking
PHILLIPS PETROLEUM CO22 citations81
US4218346AAug 19, 1980
Zinc titanate catalyst for dehydrogenation of hydrocarbons
PHILLIPS PETROLEUM CO19 citations78
US4370310AJan 25, 1983
Zinc aluminate prepared using an alumina hydrate
PHILLIPS PETROLEUM CO10 citations74
US4228040AOct 14, 1980
Lithium- or magnesium-promoted zinc titanate catalyst for dehydrogenation of hydrocarbons
PHILLIPS PETROLEUM CO15 citations74
US4010114AMar 1, 1977
Oxidative dehydrogenation catalyst
PHILLIPS PETROLEUM CO15 citations74
US4263133AApr 21, 1981
Catalytic reforming and hydrocracking of organic compounds employing zinc titanate as the catalytic agent
PHILLIPS PETROLEUM CO15 citations73
US4252680AFeb 24, 1981
Oxidative dehydrogenation catalyst preparation
PHILLIPS PETROLEUM CO16 citations73
US4727053AFeb 23, 1988
Passivation of metal contaminated cracking catalysts
PHILLIPS PETROLEUM CO3 citations63
US4793914ADec 27, 1988
Passivation of metal contaminated cracking catalysts
PHILLIPS PETROLEUM CO1 citations52
US4218343AAug 19, 1980
Dehydrogenation of organic compounds
PHILLIPS PETROLEUM CO1 citations49
SUN CO INC R & M
7 patentsUS5220080AJun 15, 1993
Chromia on metal oxide catalysts for the oxidation of methane to methanol
SUN CO INC R & M81 citations96
US5733518AMar 31, 1998
Process and catalyst for dehydrogenation of organic compounds
SUN CO INC R & M57 citations95
US5439859AAug 8, 1995
Process and catalyst for dehydrogenation of organic compounds
SUN CO INC R & M99 citations95
US5414157AMay 9, 1995
Catalytic oxidation of alkanes
SUN CO INC R & M71 citations94
US5345011ASep 6, 1994
New manganese catalyst for light alkane oxidation
SUN CO INC R & M29 citations92
US5386074AJan 31, 1995
Catalytic dehydrogenation of alkanes
SUN CO INC R & M18 citations74
US5345010ASep 6, 1994
Chromia on metal oxide for the oxidation of alkane to alcohol
SUN CO INC R & M10 citations74