Assignee
SHELL OIL CO
US·6,986 granted patents·637 pending applications·207,574 citations·filing 1962–2022
Top patents by PatentIndex Score
7,623 records- 0199US8381815B2Production from multiple zones of a tar sands formationSHELL OIL CO·Filed 2008·Granted Feb 26, 2013·57 cites·21 claims
- 0299US8042610B2Parallel heater system for subsurface formationsSHELL OIL CO·Filed 2008·Granted Oct 25, 2011·83 cites·20 claims
- 0399US7931086B2Heating systems for heating subsurface formationsSHELL OIL CO·Filed 2008·Granted Apr 26, 2011·101 cites·23 claims
- 0499US7849922B2In situ recovery from residually heated sections in a hydrocarbon containing formationSHELL OIL CO·Filed 2008·Granted Dec 14, 2010·112 cites·20 claims
- 0599US7845411B2In situ heat treatment process utilizing a closed loop heating systemSHELL OIL CO·Filed 2007·Granted Dec 7, 2010·127 cites·22 claims
- 0699US7841408B2In situ heat treatment from multiple layers of a tar sands formationSHELL OIL CO·Filed 2008·Granted Nov 30, 2010·115 cites·21 claims
- 0799US7832484B2Molten salt as a heat transfer fluid for heating a subsurface formationSHELL OIL CO·Filed 2008·Granted Nov 16, 2010·111 cites·17 claims
- 0899US7798221B2In situ recovery from a hydrocarbon containing formationSHELL OIL CO·Filed 2007·Granted Sep 21, 2010·132 cites·18 claims
- 0999US7735935B2In situ thermal processing of an oil shale formation containing carbonate mineralsSHELL OIL CO·Filed 2007·Granted Jun 15, 2010·131 cites·20 claims
- 1099US7730947B2Creating fluid injectivity in tar sands formationsSHELL OIL CO·Filed 2007·Granted Jun 8, 2010·121 cites·20 claims
- 1199US7730946B2Treating tar sands formations with dolomiteSHELL OIL CO·Filed 2007·Granted Jun 8, 2010·110 cites·25 claims
- 1299US7673681B2Treating tar sands formations with karsted zonesSHELL OIL CO·Filed 2007·Granted Mar 9, 2010·129 cites·24 claims
- 1399US7644765B2Heating tar sands formations while controlling pressureSHELL OIL CO·Filed 2007·Granted Jan 12, 2010·123 cites·18 claims
- 1499US7635025B2Cogeneration systems and processes for treating hydrocarbon containing formationsSHELL OIL CO·Filed 2006·Granted Dec 22, 2009·157 cites·40 claims
- 1599US7631690B2Heating hydrocarbon containing formations in a spiral startup staged sequenceSHELL OIL CO·Filed 2007·Granted Dec 15, 2009·171 cites·19 claims
- 1699US7610962B2Sour gas injection for use with in situ heat treatmentSHELL OIL CO·Filed 2007·Granted Nov 3, 2009·171 cites·20 claims
- 1799US7575053B2Low temperature monitoring system for subsurface barriersSHELL OIL CO·Filed 2006·Granted Aug 18, 2009·141 cites·24 claims
- 1899US7559368B2Solution mining systems and methods for treating hydrocarbon containing formationsSHELL OIL CO·Filed 2006·Granted Jul 14, 2009·184 cites·57 claims
- 1999US7559367B2Temperature limited heater with a conduit substantially electrically isolated from the formationSHELL OIL CO·Filed 2006·Granted Jul 14, 2009·205 cites·30 claims
- 2099US7556095B2Solution mining dawsonite from hydrocarbon containing formations with a chelating agentSHELL OIL CO·Filed 2006·Granted Jul 7, 2009·206 cites·22 claims
- 2199US7549470B2Solution mining and heating by oxidation for treating hydrocarbon containing formationsSHELL OIL CO·Filed 2006·Granted Jun 23, 2009·229 cites·24 claims
- 2299US7546873B2Low temperature barriers for use with in situ processesSHELL OIL CO·Filed 2006·Granted Jun 16, 2009·138 cites·13 claims
- 2399US7490665B2Variable frequency temperature limited heatersSHELL OIL CO·Filed 2005·Granted Feb 17, 2009·154 cites·26 claims
- 2499US7481274B2Temperature limited heaters with relatively constant currentSHELL OIL CO·Filed 2005·Granted Jan 27, 2009·152 cites·16 claims
- 2599US7461691B2In situ recovery from a hydrocarbon containing formationSHELL OIL CO·Filed 2007·Granted Dec 9, 2008·222 cites·19 claims
- 2699US7431076B2Temperature limited heaters using modulated DC powerSHELL OIL CO·Filed 2005·Granted Oct 7, 2008·158 cites·30 claims
- 2799US7424915B2Vacuum pumping of conductor-in-conduit heatersSHELL OIL CO·Filed 2005·Granted Sep 16, 2008·154 cites·41 claims
- 2899US7416653B2Systems and methods of producing a crude productSHELL OIL CO·Filed 2004·Granted Aug 26, 2008·120 cites·23 claims
- 2999US7402547B2Systems and methods of producing a crude productSHELL OIL CO·Filed 2004·Granted Jul 22, 2008·106 cites·13 claims
- 3099US7383877B2Temperature limited heaters with thermally conductive fluid used to heat subsurface formationsSHELL OIL CO·Filed 2005·Granted Jun 10, 2008·147 cites·30 claims
- 3199US7370704B2Triaxial temperature limited heaterSHELL OIL CO·Filed 2005·Granted May 13, 2008·165 cites·22 claims
- 3299US7353872B2Start-up of temperature limited heaters using direct current (DC)SHELL OIL CO·Filed 2005·Granted Apr 8, 2008·159 cites·21 claims
- 3399US7225866B2In situ thermal processing of an oil shale formation using a pattern of heat sourcesSHELL OIL CO·Filed 2006·Granted Jun 5, 2007·244 cites·20 claims
- 3499US7165615B2In situ recovery from a hydrocarbon containing formation using conductor-in-conduit heat sources with an electrically conductive material in the overburdenSHELL OIL CO·Filed 2002·Granted Jan 23, 2007·282 cites·42 claims
- 3599US7114566B2In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustorSHELL OIL CO·Filed 2002·Granted Oct 3, 2006·266 cites·82 claims
- 3699US7096942B1In situ thermal processing of a relatively permeable formation while controlling pressureSHELL OIL CO·Filed 2002·Granted Aug 29, 2006·321 cites·93 claims
- 3799US7090013B2In situ thermal processing of a hydrocarbon containing formation to produce heated fluidsSHELL OIL CO·Filed 2002·Granted Aug 15, 2006·282 cites·49 claims
- 3899US7086468B2In situ thermal processing of a hydrocarbon containing formation using heat sources positioned within open wellboresSHELL OIL CO·Filed 2001·Granted Aug 8, 2006·218 cites·89 claims
- 3999US7040399B2In situ thermal processing of an oil shale formation using a controlled heating rateSHELL OIL CO·Filed 2002·Granted May 9, 2006·231 cites·37 claims
- 4099US7040397B2Thermal processing of an oil shale formation to increase permeability of the formationSHELL OIL CO·Filed 2002·Granted May 9, 2006·234 cites·42 claims
- 4199US7036583B2In situ thermal processing of a hydrocarbon containing formation to increase a porosity of the formationSHELL OIL CO·Filed 2001·Granted May 2, 2006·217 cites·92 claims
- 4299US7011154B2In situ recovery from a kerogen and liquid hydrocarbon containing formationSHELL OIL CO·Filed 2002·Granted Mar 14, 2006·375 cites·68 claims
- 4399US7004251B2In situ thermal processing and remediation of an oil shale formationSHELL OIL CO·Filed 2002·Granted Feb 28, 2006·282 cites·31 claims
- 4499US6997518B2In situ thermal processing and solution mining of an oil shale formationSHELL OIL CO·Filed 2002·Granted Feb 14, 2006·255 cites·68 claims
- 4599US6994160B2In situ thermal processing of a hydrocarbon containing formation to produce hydrocarbons having a selected carbon number rangeSHELL OIL CO·Filed 2001·Granted Feb 7, 2006·237 cites·82 claims
- 4699US6991032B2In situ thermal processing of an oil shale formation using a pattern of heat sourcesSHELL OIL CO·Filed 2002·Granted Jan 31, 2006·263 cites·52 claims
- 4799US6969123B2Upgrading and mining of coalSHELL OIL CO·Filed 2002·Granted Nov 29, 2005·340 cites·39 claims
- 4899US6953087B2Thermal processing of a hydrocarbon containing formation to increase a permeability of the formationSHELL OIL CO·Filed 2001·Granted Oct 11, 2005·224 cites·87 claims
- 4999US6951247B2In situ thermal processing of an oil shale formation using horizontal heat sourcesSHELL OIL CO·Filed 2002·Granted Oct 4, 2005·262 cites·42 claims
- 5099US6932155B2In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater wellSHELL OIL CO·Filed 2002·Granted Aug 23, 2005·300 cites·22 claims
Showing the top 50 of 7,623 patent records by PatentIndex Score.
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