Inventor · disambiguated record
Stephen L. Parrott
Also filed as: PARROTT STEPHEN L
23 granted patents·1 pending application·518 citations·filing 1983–2011
96Inventor score
Top patents by PatentIndex Score
24 records- 0193US4762814AHydrotreating catalyst and process for its preparationPHILLIPS PETROLEUM CO·Filed 1987·Granted Aug 9, 1988·70 cites·13 claims
- 0290US4588706APhosphorus containing hydrofining catalystsPHILLIPS PETROLEUM CO·Filed 1985·Granted May 13, 1986·57 cites·16 claims
- 0385US4734186AHydrofining processPHILLIPS PETROLEUM CO·Filed 1987·Granted Mar 29, 1988·45 cites·28 claims
- 0485US4707246AHydrotreating catalyst and processPHILLIPS PETROLEUM CO·Filed 1986·Granted Nov 17, 1987·45 cites·13 claims
- 0585US4687757AHydrofining catalyst composition and process for its preparationPHILLIPS PETROLEUM CO·Filed 1986·Granted Aug 18, 1987·48 cites·50 claims
- 0685US4619759ATwo-stage hydrotreating of a mixture of resid and light cycle oilPHILLIPS PETROLEUM CO·Filed 1985·Granted Oct 28, 1986·49 cites·12 claims
- 0783US4724069AHydrofining process for hydrocarbon containing feed streamsPHILLIPS PETROLEUM CO·Filed 1986·Granted Feb 9, 1988·42 cites·31 claims
- 0863US4636487AProcess for the preparation of promoted catalystsPHILLIPS PETROLEUM CO·Filed 1985·Granted Jan 13, 1987·17 cites·54 claims
- 0961US4687568ACatalytic hydrofining of oilPHILLIPS PETROLEUM CO·Filed 1986·Granted Aug 18, 1987·17 cites·13 claims
- 1060US4585751AHydrotreating catalystsPHILLIPS PETROLEUM CO·Filed 1985·Granted Apr 29, 1986·18 cites·14 claims
- 1157US4652361ACatalytic hydrofining of oilPHILLIPS PETROLEUM CO·Filed 1986·Granted Mar 24, 1987·14 cites·43 claims
- 1255US5341313ACatalyst life prediction in hydrodesulfurizationPHILLIPS PETROLEUM CO·Filed 1992·Granted Aug 23, 1994·19 cites·12 claims
- 1353US4724227AProcess for preparing a catalyst for the hydrofining of oil and catalyst prepared by the processPHILLIPS PETROLEUM CO·Filed 1987·Granted Feb 9, 1988·13 cites·15 claims
- 1451US4720472AHydrocracking catalyst for middle distillatesPHILLIPS PETROLEUM CO·Filed 1985·Granted Jan 19, 1988·9 cites·9 claims
- 1551US4648963AHydrofining process employing a phosphorus containing catalystPHILLIPS PETROLEUM CO·Filed 1986·Granted Mar 10, 1987·17 cites·18 claims
- 1647US4681869ACatalyst for hydrofining of oil and process for preparing the catalystPHILLIPS PETROLEUM CO·Filed 1985·Granted Jul 21, 1987·9 cites·31 claims
- 1742US4728417AHydrofining process for hydrocarbon containing feed streamsPHILLIPS PETROLEUM CO·Filed 1986·Granted Mar 1, 1988·8 cites·49 claims
- 1840US4596654AHydrofining catalystsPHILLIPS PETROLEUM CO·Filed 1985·Granted Jun 24, 1986·6 cites·16 claims
- 1940US2012000820A1Hydroprocessing process for the improvement of the catalyst lifeYAO JIANHUA·Filed 2011·Application pending·0 cites
- 2038US4565800AHydrofining catalystsPHILLIPS PETROLEUM CO·Filed 1985·Granted Jan 21, 1986·5 cites·14 claims
- 2137US4775652AHydrofining compositionPHILLIPS PETROLEUM CO·Filed 1987·Granted Oct 4, 1988·5 cites·15 claims
- 2233US4798666AHydrocracking catalyst for middle distillatesPHILLIPS PETROLEUM CO·Filed 1987·Granted Jan 17, 1989·2 cites·19 claims
- 2333US4447555AHydrocracking catalystsPHILLIPS PETROLEUM CO·Filed 1983·Granted May 8, 1984·2 cites·36 claims
- 2425US4510046ACatalytic hydrodenitrogenation of organic compoundsPARROTT STEPHEN L·Filed 1983·Granted Apr 9, 1985·1 cites·7 claims
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