Inventor
PARROTT STEPHEN L
US23 patents
⚠️ This page may combine multiple inventors who share the name “PARROTT STEPHEN L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHILLIPS PETROLEUM CO
22 patentsUS4762814AAug 9, 1988
Hydrotreating catalyst and process for its preparation
PHILLIPS PETROLEUM CO70 citations96
US4588706AMay 13, 1986
Phosphorus containing hydrofining catalysts
PHILLIPS PETROLEUM CO57 citations96
US4734186AMar 29, 1988
Hydrofining process
PHILLIPS PETROLEUM CO45 citations92
US4724069AFeb 9, 1988
Hydrofining process for hydrocarbon containing feed streams
PHILLIPS PETROLEUM CO42 citations92
US4707246ANov 17, 1987
Hydrotreating catalyst and process
PHILLIPS PETROLEUM CO45 citations92
US4687757AAug 18, 1987
Hydrofining catalyst composition and process for its preparation
PHILLIPS PETROLEUM CO48 citations92
US4619759AOct 28, 1986
Two-stage hydrotreating of a mixture of resid and light cycle oil
PHILLIPS PETROLEUM CO49 citations92
US4724227AFeb 9, 1988
Process for preparing a catalyst for the hydrofining of oil and catalyst prepared by the process
PHILLIPS PETROLEUM CO13 citations74
US4720472AJan 19, 1988
Hydrocracking catalyst for middle distillates
PHILLIPS PETROLEUM CO9 citations74
US4687568AAug 18, 1987
Catalytic hydrofining of oil
PHILLIPS PETROLEUM CO17 citations74
US4681869AJul 21, 1987
Catalyst for hydrofining of oil and process for preparing the catalyst
PHILLIPS PETROLEUM CO9 citations74
US4652361AMar 24, 1987
Catalytic hydrofining of oil
PHILLIPS PETROLEUM CO14 citations74
US4636487AJan 13, 1987
Process for the preparation of promoted catalysts
PHILLIPS PETROLEUM CO17 citations74
US4728417AMar 1, 1988
Hydrofining process for hydrocarbon containing feed streams
PHILLIPS PETROLEUM CO8 citations73
US4585751AApr 29, 1986
Hydrotreating catalysts
PHILLIPS PETROLEUM CO18 citations73
US5341313AAug 23, 1994
Catalyst life prediction in hydrodesulfurization
PHILLIPS PETROLEUM CO19 citations68
US4648963AMar 10, 1987
Hydrofining process employing a phosphorus containing catalyst
PHILLIPS PETROLEUM CO17 citations67
US4798666AJan 17, 1989
Hydrocracking catalyst for middle distillates
PHILLIPS PETROLEUM CO2 citations63
US4447555AMay 8, 1984
Hydrocracking catalysts
PHILLIPS PETROLEUM CO2 citations63
US4775652AOct 4, 1988
Hydrofining composition
PHILLIPS PETROLEUM CO5 citations62
US4596654AJun 24, 1986
Hydrofining catalysts
PHILLIPS PETROLEUM CO6 citations62
US4565800AJan 21, 1986
Hydrofining catalysts
PHILLIPS PETROLEUM CO5 citations62