Inventor · disambiguated record
Howard D. Simpson
Also filed as: SIMPSON HOWARD D
42 granted patents·1,382 citations·filing 1976–1997
98Inventor score
Top patents by PatentIndex Score
42 records- 0198US4460707AHydroprocessing catalyst and method for preparing itUNION OIL CO·Filed 1982·Granted Jul 17, 1984·112 cites·47 claims
- 0297US5300217AHydroprocess utilizing a delta alumina-supported nickel and molybdenum catalystUNION OIL CO·Filed 1993·Granted Apr 5, 1994·124 cites·21 claims
- 0395US4818743ADesulfurization catalyst and the catalyst prepared by a methodUNION OIL CO·Filed 1987·Granted Apr 4, 1989·98 cites·47 claims
- 0494US5389595AHydroprocessing catalyst, its use, and method of preparationUNION OIL CO·Filed 1993·Granted Feb 14, 1995·76 cites·61 claims
- 0592US5686375AHydroprocessing catalyst and its useUOP INC·Filed 1994·Granted Nov 11, 1997·65 cites·18 claims
- 0692US4548710AHydrocarbon processingUNION OIL CO·Filed 1984·Granted Oct 22, 1985·60 cites·54 claims
- 0792US4255282AHydrotreating catalyst and process for its preparationUNION OIL CO·Filed 1979·Granted Mar 10, 1981·50 cites·17 claims
- 0890US4500424ADesulfurization catalyst and processUNION OIL CO·Filed 1983·Granted Feb 19, 1985·48 cites·49 claims
- 0987US4568449AHydrotreating catalyst and processUNION OIL CO·Filed 1985·Granted Feb 4, 1986·59 cites·20 claims
- 1087US4394302AHydrodesulfurization catalyst on lithium-containing support and method for its preparationUNION OIL CO·Filed 1981·Granted Jul 19, 1983·39 cites·34 claims
- 1184US5334307AResid hydroprocessing catalystUNION OIL CO·Filed 1993·Granted Aug 2, 1994·47 cites·20 claims
- 1284US4431526AMultiple-stage hydroprocessing of hydrocarbon oilUNION OIL CO·Filed 1982·Granted Feb 14, 1984·35 cites·36 claims
- 1382US4846961AHydroprocessing catalyst with a Ni-P-MoUNION OIL CO·Filed 1987·Granted Jul 11, 1989·38 cites·19 claims
- 1482US4455390ACatalyst and method for impregnating at a pH less than oneUNION OIL CO·Filed 1982·Granted Jun 19, 1984·36 cites·44 claims
- 1582US4284531AMethanation catalysts and process for their preparationUNION OIL CO·Filed 1979·Granted Aug 18, 1981·30 cites·19 claims
- 1679US5223472ADemetallation catalystUNION OIL CO·Filed 1992·Granted Jun 29, 1993·33 cites·21 claims
- 1779US5118406AHydrotreating with silicon removalUNION OIL CO·Filed 1991·Granted Jun 2, 1992·37 cites·31 claims
- 1878US5403806APhosphorous-containing hydroprocessing catalyst and method of preparationUNION OIL CO·Filed 1993·Granted Apr 4, 1995·31 cites·64 claims
- 1976US5906731AProcess for hydroprocessing hydrocarbonsUOP INC·Filed 1997·Granted May 25, 1999·41 cites·18 claims
- 2075US4738944ANi-P-Mo catalyst and hydroprocessing use thereofUNION OIL CO·Filed 1986·Granted Apr 19, 1988·28 cites·14 claims
- 2174US4513097AHydrotreating catalyst and a method for preparing the catalystUNION OIL CO·Filed 1984·Granted Apr 23, 1985·24 cites·23 claims
- 2273US4568450AHydrocarbon conversion processUNION OIL CO·Filed 1984·Granted Feb 4, 1986·25 cites·25 claims
- 2371US5494568AHydrocarbon conversion processUOP INC·Filed 1995·Granted Feb 27, 1996·26 cites·19 claims
- 2469US4879265AHydroprocessing catalyst and phosphorous and citric acid containing impregnating solutionUNION OIL CO·Filed 1988·Granted Nov 7, 1989·25 cites·44 claims
- 2567US4940533AHydroprocessing hydrocarbon oilsUNION OIL CO·Filed 1989·Granted Jul 10, 1990·23 cites·38 claims
- 2666US4540483AHydrotreating processUNION OIL CO·Filed 1983·Granted Sep 10, 1985·18 cites·22 claims
- 2764US4969990AHydroprocessing with a catalyst having a narrow pore size distributionUNION OIL CO·Filed 1989·Granted Nov 13, 1990·18 cites·43 claims
- 2864US4097413ADesulfurization process and catalystUNION OIL CO·Filed 1976·Granted Jun 27, 1978·12 cites·4 claims
- 2963US4886582AResid hydroprocessing catalyst and method of preparationUNION OIL CO·Filed 1988·Granted Dec 12, 1989·19 cites·46 claims
- 3063US4088433AExtrusion dieUNION OIL CO·Filed 1977·Granted May 9, 1978·18 cites·15 claims
- 3162US4446248AHydrotreating catalystUNION OIL CO·Filed 1982·Granted May 1, 1984·14 cites·24 claims
- 3262US4179410ACobalt-molybdenum-alumina desulfurization catalystUNION OIL CO·Filed 1978·Granted Dec 18, 1979·13 cites·3 claims
- 3355US4969989AHydrocarbon conversion process with catalytic materials of controlled geometric mean electronegativityUNION OIL CO·Filed 1989·Granted Nov 13, 1990·13 cites·46 claims
- 3453US5210061AResid hydroprocessing catalystUNION OIL CO·Filed 1991·Granted May 11, 1993·12 cites·21 claims
- 3547US4111795AHydrodesulfurization of hydrocarbon with cobalt-molybdenum-alumina catalyst of high metal content and high surface areaUNION OIL CO·Filed 1977·Granted Sep 5, 1978·6 cites·7 claims
- 3646US4743359AReforming and related processesUNION OIL CO·Filed 1986·Granted May 10, 1988·9 cites·47 claims
- 3746US4447317AHydroprocessing with lithium-containing catalystUNION OIL CO·Filed 1983·Granted May 8, 1984·7 cites·20 claims
- 3841US5514274AProcess for the use of a phosphorus-containing hydroprocessing catalystUOP INC·Filed 1995·Granted May 7, 1996·6 cites·2 claims
- 3936US4396500AHydrotreating processUNION OIL CO·Filed 1980·Granted Aug 2, 1983·3 cites·14 claims
- 4034US4816434ACatalytic materials of controlled geometric mean electronegativityUNION OIL CO·Filed 1982·Granted Mar 28, 1989·2 cites·30 claims
- 4130US4743353AOxidation processUNION OIL CO·Filed 1986·Granted May 10, 1988·2 cites·19 claims
- 4227US4302219AProcess for producing synthetic fuel gas by reacting liquid hydrocarbons with hydrogenUNION OIL CO·Filed 1980·Granted Nov 24, 1981·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →