Inventor · disambiguated record
Ajay Madhav Madgavkar
Also filed as: CUPPLES BARRETT L · MADGAVKAR AJAY · MADGAVKAR AJAY M · MADGAVKAR AJAY MADHAV
48 granted patents·12 pending applications·4,925 citations·filing 1978–2020
99Inventor score
Files withSHELL OIL CO19GULF RESEARCH DEVELOPMENT CO17LAURITZEN ANN MARIE7IYER MAHESH VENKATARAMAN5LUMMUS TECHNOLOGY INC2
Top patents by PatentIndex Score
60 records- 0199US7798221B2In situ recovery from a hydrocarbon containing formationSHELL OIL CO·Filed 2007·Granted Sep 21, 2010·132 cites·18 claims
- 0299US7004251B2In situ thermal processing and remediation of an oil shale formationSHELL OIL CO·Filed 2002·Granted Feb 28, 2006·282 cites·31 claims
- 0399US6805195B2In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbon fluids and synthesis gasSHELL OIL CO·Filed 2001·Granted Oct 19, 2004·247 cites·60 claims
- 0499US6761216B2In situ thermal processing of a coal formation to produce hydrocarbon fluids and synthesis gasSHELL OIL CO·Filed 2001·Granted Jul 13, 2004·244 cites·65 claims
- 0599US6729401B2In situ thermal processing of a hydrocarbon containing formation and ammonia productionSHELL OIL CO·Filed 2001·Granted May 4, 2004·250 cites·58 claims
- 0699US4381641ASubstoichiometric combustion of low heating value gasesGULF RESEARCH DEVELOPMENT CO·Filed 1980·Granted May 3, 1983·360 cites·18 claims
- 0799US4366668ASubstoichiometric combustion of low heating value gasesGULF RESEARCH DEVELOPMENT CO·Filed 1981·Granted Jan 4, 1983·340 cites·17 claims
- 0899US4299086AUtilization of energy obtained by substoichiometric combustion of low heating value gasesGULF RESEARCH DEVELOPMENT CO·Filed 1978·Granted Nov 10, 1981·300 cites·14 claims
- 0999US4250962AIn situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formationsGULF RESEARCH DEVELOPMENT CO·Filed 1979·Granted Feb 17, 1981·328 cites·17 claims
- 1099US4186801AIn situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formationsGULF RESEARCH DEVELOPMENT CO·Filed 1978·Granted Feb 5, 1980·351 cites·17 claims
- 1198US7128153B2Treatment of a hydrocarbon containing formation after heatingSHELL OIL CO·Filed 2002·Granted Oct 31, 2006·223 cites·34 claims
- 1298US4605489AUpgrading shale oil by a combination processOCCIDENTAL OIL SHALE INC·Filed 1985·Granted Aug 12, 1986·237 cites·49 claims
- 1398US4378048ASubstoichiometric combustion of low heating value gases using different platinum catalystsGULF RESEARCH DEVELOPMENT CO·Filed 1981·Granted Mar 29, 1983·301 cites·6 claims
- 1498US4363361ASubstoichiometric combustion of low heating value gasesGULF RESEARCH DEVELOPMENT CO·Filed 1981·Granted Dec 14, 1982·297 cites·8 claims
- 1598US4273188AIn situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formationsGULF RESEARCH DEVELOPMENT CO·Filed 1980·Granted Jun 16, 1981·293 cites·19 claims
- 1697US9598328B2Integrated processes and systems for conversion of methane to multiple higher hydrocarbon productsSILURIA TECHNOLOGIES INC·Filed 2013·Granted Mar 21, 2017·45 cites·17 claims
- 1796US10787398B2Integrated processes and systems for conversion of methane to multiple higher hydrocarbon productsLUMMUS TECHNOLOGY INC·Filed 2018·Granted Sep 29, 2020·14 cites·24 claims
- 1896US10183900B2Integrated processes and systems for conversion of methane to multiple higher hydrocarbon productsSILURIA TECHNOLOGIES INC·Filed 2017·Granted Jan 22, 2019·12 cites·20 claims
- 1996US9144790B2Process for the conversion of ethane to aromatic hydrocarbonsSHELL OIL CO·Filed 2014·Granted Sep 29, 2015·10 cites·4 claims
- 2096US4623444AUpgrading shale oil by a combination processOCCIDENTAL OIL SHALE INC·Filed 1985·Granted Nov 18, 1986·238 cites·43 claims
- 2195US4382912ASelective combusting of hydrogen sulfide in carbon dioxide injection gasGULF RESEARCH DEVELOPMENT CO·Filed 1981·Granted May 10, 1983·58 cites·27 claims
- 2293US8835706B2Process for the conversion of mixed lower alkanes to aromatic hydrocarbonsIYER MAHESH VENKATARAMAN·Filed 2010·Granted Sep 16, 2014·20 cites·15 claims
- 2393US4433197ARemoving boron trifluoride from coordination compound contaminants in organic liquidsGULF RESEARCH DEVELOPMENT CO·Filed 1982·Granted Feb 21, 1984·35 cites·8 claims
- 2493US4308414AOligomerizing alpha-olefins with a heterogeneous catalystGULF RESEARCH DEVELOPMENT CO·Filed 1979·Granted Dec 29, 1981·29 cites·13 claims
- 2593US4263467ARecovery of boron trifluoride from a hydrocarbon liquidGULF RESEARCH DEVELOPMENT CO·Filed 1979·Granted Apr 21, 1981·30 cites·6 claims
- 2691US8946107B2Process for the conversion of ethane to aromatic hydrocarbonsSHELL OIL CO·Filed 2014·Granted Feb 3, 2015·6 cites·12 claims
- 2791US8692043B2Process for the conversion of ethane to aromatic hydrocarbonsLAURITZEN ANN MARIE·Filed 2009·Granted Apr 8, 2014·14 cites·11 claims
- 2887US11168038B2Integrated processes and systems for conversion of methane to multiple higher hydrocarbon productsLUMMUS TECHNOLOGY INC·Filed 2020·Granted Nov 9, 2021·1 cites·18 claims
- 2983US4213001AOligomerizing alpha-olefins with a heterogeneous catalystGULF RESEARCH DEVELOPMENT CO·Filed 1978·Granted Jul 15, 1980·14 cites·11 claims
- 3081US8772563B2Process for the conversion of ethane to aromatic hydrocarbonsLAURITZEN ANN MARIE·Filed 2009·Granted Jul 8, 2014·8 cites·19 claims
- 3181US4384162ARemoving boron trifluoride contaminant from organic liquids with polyvinyl alcoholGULF RESEARCH DEVELOPMENT CO·Filed 1982·Granted May 17, 1983·14 cites·13 claims
- 3279US4861723AMicrobiological desulfurization of coal and coal water admixture to provide a desulfurized fuelSHELL OIL CO·Filed 1986·Granted Aug 29, 1989·26 cites·5 claims
- 3376US8809608B2Process for the conversion of lower alkanes to aromatic hydrocarbonsLAURITZEN ANN MARIE·Filed 2009·Granted Aug 19, 2014·3 cites·13 claims
- 3471US7235677B2Method of improving the operation of an existing ethylene oxide manufacturing process and systemSHELL OIL CO·Filed 2004·Granted Jun 26, 2007·13 cites·38 claims
- 3571US4191733AReduction of carbon monoxide in substoichiometric combustionGULF RESEARCH DEVELOPMENT CO·Filed 1978·Granted Mar 4, 1980·30 cites·22 claims
- 3670US8871990B2Process for the conversion of ethane to aromatic hydrocarbonsLAURITZEN ANN MARIE·Filed 2009·Granted Oct 28, 2014·2 cites·12 claims
- 3769US5104972ARemoval of hydrogenation catalyst from polymer solutions by contact with silicatesSHELL OIL CO·Filed 1990·Granted Apr 14, 1992·27 cites·33 claims
- 3869US4454366AMethod of recovering and recycling boron trifluoride catalystGULF RESEARCH DEVELOPMENT CO·Filed 1982·Granted Jun 12, 1984·8 cites·18 claims
- 3964US4985139ATwo-step heterocyclic nitrogen extraction from petroleum oils with reduced refinery equipmentSHELL OIL CO·Filed 1988·Granted Jan 15, 1991·21 cites·12 claims
- 4064US4426280AProcess for removing nitrogen from shale oilOCCIDENTAL PETROLEUM CORP·Filed 1982·Granted Jan 17, 1984·17 cites·47 claims
- 4160US2014309469A1Process for the production of gasoline blending components and aromatic hydrocarbons from lower alkanesSHELL OIL CO·Filed 2014·Application pending·0 cites
- 4259US2014315710A1Process for the conversion of lower alkanes to aromatic hydrocarbonsSHELL OIL CO·Filed 2014·Application pending·0 cites
- 4358US4394296ABoron trifluoride-water-silica catalystGULF RESEARCH DEVELOPMENT CO·Filed 1981·Granted Jul 19, 1983·12 cites·7 claims
- 4453US8779224B2Process for the production of gasoline blending components and aromatic hydrocarbons from lower alkanesJOIS YAJNANARAYANA HALMUTHUR·Filed 2011·Granted Jul 15, 2014·0 cites·2 claims
- 4551US9861967B2Dehydroaromatization catalyst, method of making and use thereofSHELL OIL CO·Filed 2013·Granted Jan 9, 2018·0 cites·4 claims
- 4651US5089541ARemoval of hydrogenation catalyst from polymer solutions by contact with activated carbonSHELL OIL CO·Filed 1990·Granted Feb 18, 1992·8 cites·22 claims
- 4749US2010048968A1Process for the conversion of lower alkanes to aromatic hydrocarbons and ethyleneLAURITZEN ANN MARIE·Filed 2009·Application pending·0 cites
- 4849US2010048967A1Process for the conversion of lower alkanes to ethylene and aromatic hydrocarbonsLAURITZEN ANN MARIE·Filed 2009·Application pending·0 cites
- 4948US4790930ATwo-step heterocyclic nitrogen extraction from petroleum oilsSHELL OIL CO·Filed 1987·Granted Dec 13, 1988·11 cites·26 claims
- 5048US2009156870A1Process for the conversion of ethane to mixed lower alkanes to aromatic hydrocarbonsLAURITZEN ANN MARIE·Filed 2008·Application pending·0 cites
Showing the top 50 of 60 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Ajay Madhav Madgavkar files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →