Inventor · disambiguated record
Alkis S. Rappas
Also filed as: RAPPAS ALKIS · RAPPAS ALKIS S
29 granted patents·9 pending applications·745 citations·filing 1976–2015
97Inventor score
Top patents by PatentIndex Score
38 records- 0198US6402940B1Process for removing low amounts of organic sulfur from hydrocarbon fuelsUNIPURE CORP·Filed 2000·Granted Jun 11, 2002·126 cites·18 claims
- 0297US7897126B2Catalytic gasification process with recovery of alkali metal from charGREATPOINT ENERGY INC·Filed 2008·Granted Mar 1, 2011·74 cites·21 claims
- 0396US7901644B2Catalytic gasification process with recovery of alkali metal from charGREATPOINT ENERGY INC·Filed 2008·Granted Mar 8, 2011·69 cites·19 claims
- 0495US4298581AProcess for recovering chromium, vanadium, molybdenum and tungsten values from a feed materialCABOT CORP·Filed 1980·Granted Nov 3, 1981·56 cites·20 claims
- 0594US8286901B2Coal compositions for catalytic gasificationRAPPAS ALKIS S·Filed 2009·Granted Oct 16, 2012·20 cites·6 claims
- 0694US6406616B1Process for removing low amounts of organic sulfur from hydrocarbon fuelsUNIPURE CORP·Filed 2001·Granted Jun 18, 2002·88 cites·18 claims
- 0793US8297542B2Coal compositions for catalytic gasificationRAPPAS ALKIS S·Filed 2009·Granted Oct 30, 2012·22 cites·8 claims
- 0892US8163048B2Catalyst-loaded coal compositions, methods of making and useRAPPAS ALKIS S·Filed 2008·Granted Apr 24, 2012·23 cites·20 claims
- 0989US8734547B2Processes for preparing a catalyzed carbonaceous particulateRAPPAS ALKIS S·Filed 2009·Granted May 27, 2014·16 cites·11 claims
- 1089US8648121B2Hydromethanation of a carbonaceous feedstock with nickel recoveryRAPPAS ALKIS S·Filed 2012·Granted Feb 11, 2014·5 cites·22 claims
- 1189US4278644AProcess for partitioning Mo and W from a mixed CaMoO4 -CaWO4 precipitateCABOT CORP·Filed 1980·Granted Jul 14, 1981·32 cites·18 claims
- 1287US4891067AProcesses for the treatment of smelter flue dustKENNECOTT UTAH COPPER CORP·Filed 1988·Granted Jan 2, 1990·55 cites·39 claims
- 1385US8557878B2Hydromethanation of a carbonaceous feedstock with vanadium recoveryRAPPAS ALKIS S·Filed 2011·Granted Oct 15, 2013·5 cites·18 claims
- 1480US8734548B2Processes for preparing a catalyzed coal particulateRAPPAS ALKIS S·Filed 2009·Granted May 27, 2014·6 cites·11 claims
- 1577US4320094APartitioning of refractory metals from oxidation resistant scrap alloyCABOT CORP·Filed 1980·Granted Mar 16, 1982·18 cites·71 claims
- 1676US4305754AChromium recovery from scrap alloysCABOT CORP·Filed 1980·Granted Dec 15, 1981·22 cites·46 claims
- 1773US4298582AVanadium recovery from scrap alloysCABOT CORP·Filed 1980·Granted Nov 3, 1981·19 cites·17 claims
- 1870US6355221B1Process for removing soluble fluoride from a waste solution containing the sameBP CORP NORTH AMERICA INC·Filed 1999·Granted Mar 12, 2002·32 cites·20 claims
- 1966US2009166588A1Petroleum Coke Compositions for Catalytic GasificationGREATPOINT ENERGY INC·Filed 2008·Application pending·0 cites
- 2065US4545816AProcesses relating to the extraction of metals from laterites and ocean manganese nodulesSTANDARD OIL CO OHIO·Filed 1984·Granted Oct 8, 1985·11 cites·61 claims
- 2160US2009165379A1Coal Compositions for Catalytic GasificationGREATPOINT ENERGY INC·Filed 2008·Application pending·0 cites
- 2257US2012271072A1Hydromethanation of a carbonaceous feedstockROBINSON EARL T·Filed 2012·Application pending·0 cites
- 2356US4095975AContinuous recovery of copper metal from acidic solutionsKENNECOTT COPPER CORP·Filed 1977·Granted Jun 20, 1978·8 cites·30 claims
- 2453US2015299588A1Petroleum Coke Compositions for Catalytic GasificationGREATPOINT ENERGY INC·Filed 2015·Application pending·0 cites
- 2552US2009165361A1Carbonaceous Fuels and Processes for Making and Using ThemGREATPOINT ENERGY INC·Filed 2008·Application pending·0 cites
- 2651US2009165383A1Catalytic Gasification Process with Recovery of Alkali Metal from CharGREATPOINT ENERGY INC·Filed 2008·Application pending·0 cites
- 2751US2009165382A1Catalytic Gasification Process with Recovery of Alkali Metal from CharGREATPOINT ENERGY INC·Filed 2008·Application pending·0 cites
- 2850US4097272AWinning nickel and cobalt with mercaptide extractants and carbon monoxide stripKENNECOTT COPPER CORP·Filed 1977·Granted Jun 27, 1978·5 cites·18 claims
- 2948US5573672AWater managed solvent extraction process for the organic wastesFiled 1995·Granted Nov 12, 1996·15 cites·22 claims
- 3046US4047940ASeparation and recovery of copper metal from ammoniacal solutionsKENNECOTT COPPER CORP·Filed 1976·Granted Sep 13, 1977·5 cites·32 claims
- 3143US4148813ANickel and cobalt solvent extraction with mercaptidesKENNECOTT COPPER CORP·Filed 1977·Granted Apr 10, 1979·3 cites·6 claims
- 3243US4148816AAlkali metal mercaptide solvent extraction of cobalt, nickelKENNECOTT COPPER CORP·Filed 1977·Granted Apr 10, 1979·3 cites·6 claims
- 3343US4148815AAmino-thiol nickel and cobalt solvent extractionKENNECOTT COPPER CORP·Filed 1977·Granted Apr 10, 1979·3 cites·6 claims
- 3439US2005218038A1Pre-treatment of hydrocarbon feed prior to oxidative desulfurizationNERO VINCENT P·Filed 2004·Application pending·0 cites
- 3538US2016137924A1Processes for holding char in a catalyic fast pyrolysis process and char compositionsANELLOTECH INC·Filed 2015·Application pending·0 cites
- 3637US4038070ALow temperature and pressure continuous reduction of copper in acid solutionsKENNECOTT COPPER CORP·Filed 1976·Granted Jul 26, 1977·3 cites·65 claims
- 3730US4128416ANickel recovery employing carbonyl ferratesKENNECOTT COPPER CORP·Filed 1978·Granted Dec 5, 1978·0 cites·12 claims
- 3828US4423014ASolvent extractionCABOT CORP·Filed 1981·Granted Dec 27, 1983·1 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →