Inventor · disambiguated record
Leroy R. Clavenna
Also filed as: CLAVENNA LEROY · CLAVENNA LEROY R · CLAVENNA LEROY RUSSELL · EAKMAN JAMES M
26 granted patents·1 pending application·962 citations·filing 1975–2010
97Inventor score
Top patents by PatentIndex Score
27 records- 0198US8211548B2Silicon-containing steel composition with improved heat exchanger corrosion and fouling resistanceCHUN CHANGMIN·Filed 2006·Granted Jul 3, 2012·28 cites·12 claims
- 0298US4260421ACement production from coal conversion residuesEXXON RESEARCH ENGINEERING CO·Filed 1979·Granted Apr 7, 1981·123 cites·10 claims
- 0396US4159195AHydrothermal alkali metal recovery processEXXON RESEARCH ENGINEERING CO·Filed 1977·Granted Jun 26, 1979·90 cites·15 claims
- 0496US4157246AHydrothermal alkali metal catalyst recovery processEXXON RESEARCH ENGINEERING CO·Filed 1978·Granted Jun 5, 1979·89 cites·15 claims
- 0594US4193771AAlkali metal recovery from carbonaceous material conversion processEXXON RESEARCH ENGINEERING CO·Filed 1978·Granted Mar 18, 1980·107 cites·15 claims
- 0692US5883138ARapid injection catalytic partial oxidation process and apparatus for producing synthesis gas (law 562)EXXON RESEARCH ENGINEERING CO·Filed 1997·Granted Mar 16, 1999·117 cites·24 claims
- 0792US3939008AUse of perovskites and perovskite-related compounds as battery cathodesEXXON RESEARCH ENGINEERING CO·Filed 1975·Granted Feb 17, 1976·53 cites·13 claims
- 0883US6521565B1Cobalt catalyst compositions useful for conducting carbon monoxide hydrogenation reactionsEXXONMOBIL RES & ENG CO·Filed 2000·Granted Feb 18, 2003·30 cites·14 claims
- 0982US6267912B1Distributed injection catalytic partial oxidation process and apparatus for producing synthesis gasEXXON RESEARCH ENGINEERING CO·Filed 1997·Granted Jul 31, 2001·64 cites·22 claims
- 1081US6531517B1Process for increasing carbon monoxide hydrogenation activity of catalysts via low temperature oxidation with water, steam or mixture thereofEXXONMOBIL RES & ENG CO·Filed 2000·Granted Mar 11, 2003·27 cites·22 claims
- 1181US6465529B1Process for increasing cobalt catalyst hydrogenation activity via aqueous low temperature oxidationEXXONMOBIL RES & ENG CO·Filed 2000·Granted Oct 15, 2002·20 cites·22 claims
- 1279US5356845AProcess for the reactivation of nickel-alumina catalystsEXXON RESEARCH ENGINEERING CO·Filed 1993·Granted Oct 18, 1994·36 cites·22 claims
- 1378US6624204B1Carbon monoxide hydrogenation processEXXONMOBIL RES & ENG CO·Filed 2000·Granted Sep 23, 2003·11 cites·31 claims
- 1477US5395406AStructurally modified alumina supports, and heat transfer solids for high temperature fluidized bed reactionsEXXON RESEARCH ENGINEERING CO·Filed 1993·Granted Mar 7, 1995·36 cites·17 claims
- 1571US5597474AProduction of hydrogen from a fluid coking process using steam reformingEXXON RESEARCH ENGINEERING CO·Filed 1994·Granted Jan 28, 1997·22 cites·5 claims
- 1670US4060500APreparation of mixed metal oxides by decomposition of carbonate solid solutions having the calcite structureEXXON RESEARCH ENGINEERING CO·Filed 1976·Granted Nov 29, 1977·20 cites·45 claims
- 1768US7726871B2Vibration actuation system with independent control of frequency and amplitudeEXXONMOBIL RES & ENG CO·Filed 2006·Granted Jun 1, 2010·6 cites·28 claims
- 1868US5395813AParticulate solids for catalyst supports and heat transfer materialsEXXON RESEARCH ENGINEERING CO·Filed 1993·Granted Mar 7, 1995·18 cites·13 claims
- 1964US7862224B2Vibration actuation system with independent control of frequency and amplitudeEXXONMOBIL RES & ENG CO·Filed 2010·Granted Jan 4, 2011·1 cites·5 claims
- 2058US5348717ASynthesis gas from particulate catalysts, and admixtures of particulate catalysts and heat transfer solidsEXXON RESEARCH ENGINEERING CO·Filed 1993·Granted Sep 20, 1994·14 cites·12 claims
- 2155US5360777AHigh performance alumina heat transfer solids for high temperature fluidized bed synthesis gas reactionsEXXON RESEARCH ENGINEERING CO·Filed 1993·Granted Nov 1, 1994·10 cites·8 claims
- 2252US5496531AHigh surface purity heat transfer solids for high temperature fluidized bed reactionsEXXON RESEARCH ENGINEERING CO·Filed 1994·Granted Mar 5, 1996·9 cites·9 claims
- 2352US5421842AHigh energy level in situ attrition and break up of catalyst to maintain bed fluidization during high temperature operationsEXXON RESEARCH ENGINEERING CO·Filed 1994·Granted Jun 6, 1995·12 cites·19 claims
- 2450US5476877AParticulate solids for catalyst supports and heat transfer materialsEXXON RESEARCH ENGINEERING CO·Filed 1994·Granted Dec 19, 1995·10 cites·13 claims
- 2549US2006182888A1Modifying steel surfaces to mitigate fouling and corrosionCODY IAN A·Filed 2005·Application pending·0 cites
- 2642US5360778AHigh surface purity heat transfer solids for high temperature fluidized bed reactionsEXXON RESEARCH ENGINEERING CO·Filed 1993·Granted Nov 1, 1994·5 cites·10 claims
- 2734US5421841AProcess for the elimination of silica and other impurities in fluidized bed syn gas productionEXXON RESEARCH ENGINEERING CO·Filed 1994·Granted Jun 6, 1995·4 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →