Inventor
SAWYER WILLARD H
US27 patents
⚠️ This page may combine multiple inventors who share the name “SAWYER WILLARD H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
EXXON RESEARCH ENGINEERING CO
26 patentsUS4542121ASep 17, 1985
Catalysts from molybdenum polysulfide precursors, their preparation and use
EXXON RESEARCH ENGINEERING CO60 citations95
US4540481ASep 10, 1985
Catalysts from molybdenum polysulfide precursors, their preparation and use
EXXON RESEARCH ENGINEERING CO54 citations95
US4430442AFeb 7, 1984
Catalysts from molybdenum polysulfide precursors and their preparation
EXXON RESEARCH ENGINEERING CO75 citations95
US5037532AAug 6, 1991
Slurry hydrotreating process
EXXON RESEARCH ENGINEERING CO51 citations92
US4952306AAug 28, 1990
Slurry hydroprocessing process
EXXON RESEARCH ENGINEERING CO52 citations92
US4923841AMay 8, 1990
Catalyst for the hydroisomerization and hydrocracking of waxes to produce liquid hydrocarbon fuels and process for preparing the catalyst
EXXON RESEARCH ENGINEERING CO24 citations92
US4919786AApr 24, 1990
Process for the hydroisomerization of was to produce middle distillate products (OP-3403)
EXXON RESEARCH ENGINEERING CO47 citations92
US4900707AFeb 13, 1990
Method for producing a wax isomerization catalyst
EXXON RESEARCH ENGINEERING CO40 citations92
US4828676AMay 9, 1989
Process for the production of ultra high octane gasoline, and other fuels from aromatic hydrocrackates
EXXON RESEARCH ENGINEERING CO32 citations92
US4828675AMay 9, 1989
Process for the production of ultra high octane gasoline, and other fuels from aromatic distillates
EXXON RESEARCH ENGINEERING CO26 citations92
US4255288AMar 10, 1981
Zirconia-containing catalysts
EXXON RESEARCH ENGINEERING CO29 citations92
US4016106AApr 5, 1977
Preparation of catalysts of predetermined pore size distribution and pore volume
EXXON RESEARCH ENGINEERING CO50 citations91
US3985684AOct 12, 1976
Heavy crude conversion
EXXON RESEARCH ENGINEERING CO21 citations81
US3977962AAug 31, 1976
Heavy crude conversion
EXXON RESEARCH ENGINEERING CO23 citations81
US4326947AApr 27, 1982
Hydrocracking over alumina-aluminum fluorophosphate-containing catalysts
EXXON RESEARCH ENGINEERING CO17 citations74
US4309278AJan 5, 1982
Catalyst and hydroconversion process utilizing the same
EXXON RESEARCH ENGINEERING CO17 citations74
US4277373AJul 7, 1981
Alumina-aluminum fluorophosphate-containing catalysts
EXXON RESEARCH ENGINEERING CO11 citations74
US4276201AJun 30, 1981
Catalyst and hydroconversion process utilizing the same
EXXON RESEARCH ENGINEERING CO8 citations74
US4081406AMar 28, 1978
Preparation of catalysts of predetermined pore size distribution and pore volume
EXXON RESEARCH ENGINEERING CO15 citations74
US4081405AMar 28, 1978
Preparation of catalysts of predetermined pore size distribution and pore volume
EXXON RESEARCH ENGINEERING CO10 citations74
US4959337ASep 25, 1990
Wax isomerization catalyst and method for its production
EXXON RESEARCH ENGINEERING CO11 citations73
US3993601ANov 23, 1976
Process for preparing a heavy crude conversion catalyst
EXXON RESEARCH ENGINEERING CO11 citations71
US3989645ANov 2, 1976
Process for preparing a heavy crude conversion catalyst
EXXON RESEARCH ENGINEERING CO7 citations71
US4344867AAug 17, 1982
Hydroprocessing catalysts
EXXON RESEARCH ENGINEERING CO6 citations63
US4016107AApr 5, 1977
Preparation of catalysts of predetermined pore size distribution and pore volume
EXXON RESEARCH ENGINEERING CO3 citations62
US3993598ANov 23, 1976
Process for preparing a heavy crude conversion catalyst
EXXON RESEARCH ENGINEERING CO5 citations61