Inventor · disambiguated record
Gopal H. Singhal
Also filed as: SINGHAL GOPAL H
22 granted patents·472 citations·filing 1974–1992
96Inventor score
Files withEXXON RESEARCH ENGINEERING CO22
Top patents by PatentIndex Score
22 records- 0190US5278121AMultimetallic sulfide catalyst containing noble metals for hydrodenitrogenationEXXON RESEARCH ENGINEERING CO·Filed 1992·Granted Jan 11, 1994·91 cites·14 claims
- 0290US4434043ARecovery of catalyst from coal liquefaction residuesEXXON RESEARCH ENGINEERING CO·Filed 1982·Granted Feb 28, 1984·60 cites·15 claims
- 0386US5034142ALubricating oil containing a nickel alkoxyalkylxanthate, a dixanthogen, and zinc dialkyldithiophosphateEXXON RESEARCH ENGINEERING CO·Filed 1989·Granted Jul 23, 1991·42 cites·11 claims
- 0485US4454024AHydroconversion processEXXON RESEARCH ENGINEERING CO·Filed 1982·Granted Jun 12, 1984·35 cites·9 claims
- 0583US4561964ACatalyst for the hydroconversion of carbonaceous materialsEXXON RESEARCH ENGINEERING CO·Filed 1984·Granted Dec 31, 1985·36 cites·27 claims
- 0679US5055211ALubricating oil containing a mixed ligand metal complex and a metal thiophosphateEXXON RESEARCH ENGINEERING CO·Filed 1989·Granted Oct 8, 1991·25 cites·31 claims
- 0779US4683316AMethod of preparation of dithiocarbamate complexes of molybdenum (VI)EXXON RESEARCH ENGINEERING CO·Filed 1986·Granted Jul 28, 1987·15 cites·13 claims
- 0877US5064527ACatalytic process for hydroconversion of carbonaceous materialsEXXON RESEARCH ENGINEERING CO·Filed 1984·Granted Nov 12, 1991·29 cites·22 claims
- 0973US4268415ARegeneration of spent hydrodesulfurization catalysts with heteropoly acids and hydrogen peroxideEXXON RESEARCH ENGINEERING CO·Filed 1979·Granted May 19, 1981·19 cites·19 claims
- 1065US4272400ARegeneration of spent hydrodesulfurization catalysts employing presulfiding treatment and heteropoly acidsEXXON RESEARCH ENGINEERING CO·Filed 1979·Granted Jun 9, 1981·15 cites·25 claims
- 1158US4824558ACoal liquefaction process with metal/iodine cocatalystEXXON RESEARCH ENGINEERING CO·Filed 1987·Granted Apr 25, 1989·16 cites·34 claims
- 1258US3959173ANovel liquid membrane formulations and uses thereofEXXON RESEARCH ENGINEERING CO·Filed 1974·Granted May 25, 1976·7 cites·10 claims
- 1356US4272401ARegeneration of spent hydrodesulfurization catalyst with heteropoly acidsEXXON RESEARCH ENGINEERING CO·Filed 1979·Granted Jun 9, 1981·13 cites·19 claims
- 1453US5086027ANovel noble metal supported hydrotreating catalystsEXXON RESEARCH ENGINEERING CO·Filed 1990·Granted Feb 4, 1992·14 cites·8 claims
- 1552US4014785ANovel liquid membrane formulations and uses thereofEXXON RESEARCH ENGINEERING CO·Filed 1975·Granted Mar 29, 1977·12 cites·17 claims
- 1650US4853110AMethod for separating arsenic and/or selenium from shale oilEXXON RESEARCH ENGINEERING CO·Filed 1986·Granted Aug 1, 1989·12 cites·7 claims
- 1748US5294349ACoal depolymerization and hydroprocessingEXXON RESEARCH ENGINEERING CO·Filed 1992·Granted Mar 15, 1994·11 cites·8 claims
- 1847US4681957AMethod of preparing hydrocarbon substituted dithiocarbamates of molybdenumEXXON RESEARCH ENGINEERING CO·Filed 1985·Granted Jul 21, 1987·3 cites·5 claims
- 1946US3969265ANovel liquid membrane formulations and use thereofEXXON RESEARCH ENGINEERING CO·Filed 1976·Granted Jul 13, 1976·9 cites·15 claims
- 2039US4064040ASour water treating process utilizing liquid membranes having a sulfonated polymer exterior oil phaseEXXON RESEARCH ENGINEERING CO·Filed 1976·Granted Dec 20, 1977·6 cites·46 claims
- 2138US5026492ALubricating oil containing an alkyl alkoxyalkylxanthate and zinc dialkyldithiophosphateEXXON RESEARCH ENGINEERING CO·Filed 1989·Granted Jun 25, 1991·2 cites·8 claims
- 2230US5035815ALubricating oil containing a nickel alkoxyalkylxanthate and zinc dialkyldithiophosphateEXXON RESEARCH ENGINEERING CO·Filed 1989·Granted Jul 30, 1991·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →