Inventor
SINGHAL GOPAL H
US22 patents
Patents
22 patentsUS5278121AJan 11, 1994
Multimetallic sulfide catalyst containing noble metals for hydrodenitrogenation
EXXON RESEARCH ENGINEERING CO91 citations94
US4434043AFeb 28, 1984
Recovery of catalyst from coal liquefaction residues
EXXON RESEARCH ENGINEERING CO60 citations94
US5055211AOct 8, 1991
Lubricating oil containing a mixed ligand metal complex and a metal thiophosphate
EXXON RESEARCH ENGINEERING CO25 citations92
US5034142AJul 23, 1991
Lubricating oil containing a nickel alkoxyalkylxanthate, a dixanthogen, and zinc dialkyldithiophosphate
EXXON RESEARCH ENGINEERING CO42 citations92
US4454024AJun 12, 1984
Hydroconversion process
EXXON RESEARCH ENGINEERING CO35 citations92
US4561964ADec 31, 1985
Catalyst for the hydroconversion of carbonaceous materials
EXXON RESEARCH ENGINEERING CO36 citations89
US5064527ANov 12, 1991
Catalytic process for hydroconversion of carbonaceous materials
EXXON RESEARCH ENGINEERING CO29 citations88
US4268415AMay 19, 1981
Regeneration of spent hydrodesulfurization catalysts with heteropoly acids and hydrogen peroxide
EXXON RESEARCH ENGINEERING CO19 citations80
US4683316AJul 28, 1987
Method of preparation of dithiocarbamate complexes of molybdenum (VI)
EXXON RESEARCH ENGINEERING CO15 citations74
US5086027AFeb 4, 1992
Novel noble metal supported hydrotreating catalysts
EXXON RESEARCH ENGINEERING CO14 citations73
US4853110AAug 1, 1989
Method for separating arsenic and/or selenium from shale oil
EXXON RESEARCH ENGINEERING CO12 citations73
US4824558AApr 25, 1989
Coal liquefaction process with metal/iodine cocatalyst
EXXON RESEARCH ENGINEERING CO16 citations73
US4014785AMar 29, 1977
Novel liquid membrane formulations and uses thereof
EXXON RESEARCH ENGINEERING CO12 citations73
US3969265AJul 13, 1976
Novel liquid membrane formulations and use thereof
EXXON RESEARCH ENGINEERING CO9 citations73
US3959173AMay 25, 1976
Novel liquid membrane formulations and uses thereof
EXXON RESEARCH ENGINEERING CO7 citations73
US5294349AMar 15, 1994
Coal depolymerization and hydroprocessing
EXXON RESEARCH ENGINEERING CO11 citations72
US4272400AJun 9, 1981
Regeneration of spent hydrodesulfurization catalysts employing presulfiding treatment and heteropoly acids
EXXON RESEARCH ENGINEERING CO15 citations72
US4272401AJun 9, 1981
Regeneration of spent hydrodesulfurization catalyst with heteropoly acids
EXXON RESEARCH ENGINEERING CO13 citations72
US5026492AJun 25, 1991
Lubricating oil containing an alkyl alkoxyalkylxanthate and zinc dialkyldithiophosphate
EXXON RESEARCH ENGINEERING CO2 citations63
US4681957AJul 21, 1987
Method of preparing hydrocarbon substituted dithiocarbamates of molybdenum
EXXON RESEARCH ENGINEERING CO3 citations62
US4064040ADec 20, 1977
Sour water treating process utilizing liquid membranes having a sulfonated polymer exterior oil phase
EXXON RESEARCH ENGINEERING CO6 citations62
US5035815AJul 30, 1991
Lubricating oil containing a nickel alkoxyalkylxanthate and zinc dialkyldithiophosphate
EXXON RESEARCH ENGINEERING CO0 citations51