Assignee
OCCIDENTAL OIL SHALE INC
US·157 granted patents·3,490 citations·filing 1975–1985
Top patents by PatentIndex Score
157 records- 0199US4140181ATwo-stage removal of sulfur dioxide from process gas using treated oil shaleOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Feb 20, 1979·239 cites·31 claims
- 0298US4605489AUpgrading shale oil by a combination processOCCIDENTAL OIL SHALE INC·Filed 1985·Granted Aug 12, 1986·237 cites·49 claims
- 0398US4093026ARemoval of sulfur dioxide from process gas using treated oil shale and waterOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Jun 6, 1978·281 cites·21 claims
- 0498US4029360AMethod of recovering oil and water from in situ oil shale retort flue gasOCCIDENTAL OIL SHALE INC·Filed 1976·Granted Jun 14, 1977·166 cites·5 claims
- 0596US4623444AUpgrading shale oil by a combination processOCCIDENTAL OIL SHALE INC·Filed 1985·Granted Nov 18, 1986·238 cites·43 claims
- 0695US4437519AReduction of shale oil pour pointOCCIDENTAL OIL SHALE INC·Filed 1981·Granted Mar 20, 1984·229 cites·14 claims
- 0795US4423907AIn situ recovery of shale oilOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Jan 3, 1984·59 cites·20 claims
- 0895US4151877ADetermining the locus of a processing zone in a retort through channelsOCCIDENTAL OIL SHALE INC·Filed 1977·Granted May 1, 1979·132 cites·42 claims
- 0993US4167291AMethod of forming an in situ oil shale retort with void volume as function of kerogen content of formation within retort siteOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Sep 11, 1979·46 cites·13 claims
- 1092US4149595AIn situ oil shale retort with variations in surface area corresponding to kerogen content of formation within retort siteOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Apr 17, 1979·43 cites·26 claims
- 1192US4133580AIsolation of in situ oil shale retortsOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Jan 9, 1979·43 cites·21 claims
- 1291US4266612AIn situ recovery of shale oilOCCIDENTAL OIL SHALE INC·Filed 1977·Granted May 12, 1981·39 cites·4 claims
- 1391US4239283AIn situ oil shale retort with intermediate gas controlOCCIDENTAL OIL SHALE INC·Filed 1979·Granted Dec 16, 1980·38 cites·44 claims
- 1487US4043595AIn situ recovery of shale oilOCCIDENTAL OIL SHALE INC·Filed 1975·Granted Aug 23, 1977·64 cites·111 claims
- 1582US4047760AIn situ recovery of shale oilOCCIDENTAL OIL SHALE INC·Filed 1975·Granted Sep 13, 1977·48 cites·20 claims
- 1680US4192381AIn situ retorting with high temperature oxygen supplying gasOCCIDENTAL OIL SHALE INC·Filed 1978·Granted Mar 11, 1980·20 cites·29 claims
- 1779US4294563AThermally insulated bulkhead for in situ oil shale retortOCCIDENTAL OIL SHALE INC·Filed 1979·Granted Oct 13, 1981·56 cites·37 claims
- 1879US4043598AMultiple zone preparation of oil shale retortOCCIDENTAL OIL SHALE INC·Filed 1976·Granted Aug 23, 1977·20 cites·71 claims
- 1979US4043596AForming shale oil recovery retort by blasting into slot-shaped columner voidOCCIDENTAL OIL SHALE INC·Filed 1975·Granted Aug 23, 1977·20 cites·51 claims
- 2079US4036099AMethod of loading blast hole with explosiveOCCIDENTAL OIL SHALE INC·Filed 1975·Granted Jul 19, 1977·28 cites·22 claims
- 2178US4369842AAnalyzing oil shale retort off-gas for carbon dioxide to determine the combustion zone temperatureOCCIDENTAL OIL SHALE INC·Filed 1981·Granted Jan 25, 1983·49 cites·15 claims
- 2277US4223726ADetermining the locus of a processing zone in an oil shale retort by effluent water compositionOCCIDENTAL OIL SHALE INC·Filed 1979·Granted Sep 23, 1980·39 cites·30 claims
- 2377US4147388AMethod for in situ recovery of liquid and gaseous products from oil shale depositsOCCIDENTAL OIL SHALE INC·Filed 1978·Granted Apr 3, 1979·18 cites·33 claims
- 2476US4106814AMethod of forming in situ oil shale retortsOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Aug 15, 1978·40 cites·22 claims
- 2575US4372615AMethod of rubbling oil shaleOCCIDENTAL OIL SHALE INC·Filed 1980·Granted Feb 8, 1983·45 cites·39 claims
- 2675US4076312AMethod and apparatus for retorting oil shale at subatmospheric pressureOCCIDENTAL OIL SHALE INC·Filed 1976·Granted Feb 28, 1978·16 cites·16 claims
- 2774US4266826AIn-situ recovery of constituents from fragmented oreOCCIDENTAL OIL SHALE INC·Filed 1976·Granted May 12, 1981·35 cites·15 claims
- 2873US4272127ASubsidence control at boundaries of an in situ oil shale retort development regionOCCIDENTAL OIL SHALE INC·Filed 1979·Granted Jun 9, 1981·37 cites·42 claims
- 2973US4227574ALocating the top of an in situ oil shale retort for ease of ignitionOCCIDENTAL OIL SHALE INC·Filed 1979·Granted Oct 14, 1980·15 cites·9 claims
- 3073US4140343AGas withdrawal from an in situ oil shale retortOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Feb 20, 1979·16 cites·45 claims
- 3172US4163475ADetermining the locus of a processing zone in an in situ oil shale retortOCCIDENTAL OIL SHALE INC·Filed 1978·Granted Aug 7, 1979·34 cites·18 claims
- 3271US4440446AMethod for forming a module of in situ oil shale retortsOCCIDENTAL OIL SHALE INC·Filed 1982·Granted Apr 3, 1984·31 cites·17 claims
- 3371US4105072AProcess for recovering carbonaceous values from post in situ oil shale retortingOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Aug 8, 1978·14 cites·45 claims
- 3470US4368921ANon-subsidence method for developing an in situ oil shale retortOCCIDENTAL OIL SHALE INC·Filed 1981·Granted Jan 18, 1983·40 cites·15 claims
- 3570US4176882AIn situ oil shale retorts with gas barriers for maximizing product recoveryOCCIDENTAL OIL SHALE INC·Filed 1978·Granted Dec 4, 1979·15 cites·61 claims
- 3669US4191251AProcess for recovering carbonaceous values from in situ oil shale retortingOCCIDENTAL OIL SHALE INC·Filed 1978·Granted Mar 4, 1980·13 cites·77 claims
- 3769US4036299AEnriching off gas from oil shale retortOCCIDENTAL OIL SHALE INC·Filed 1975·Granted Jul 19, 1977·29 cites·47 claims
- 3868US4148710AFluidized bed process for retorting oil shaleOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Apr 10, 1979·17 cites·4 claims
- 3968US4118071AIn situ oil shale retort with a horizontal sill pillarOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Oct 3, 1978·14 cites·38 claims
- 4067US4263970AMethod for assuring uniform combustion in an in situ oil shale retortOCCIDENTAL OIL SHALE INC·Filed 1978·Granted Apr 28, 1981·11 cites·104 claims
- 4166US4245701AApparatus and method for igniting an in situ oil shale retortOCCIDENTAL OIL SHALE INC·Filed 1979·Granted Jan 20, 1981·21 cites·15 claims
- 4266US4146272AExplosive placement for explosive expansion toward spaced apart voidsOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Mar 27, 1979·11 cites·74 claims
- 4365US4149804AMethod and apparatus for measuring chemical content of core samplesOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Apr 17, 1979·23 cites·45 claims
- 4464US4178039AWater treatment and heating in spent shale oil retortOCCIDENTAL OIL SHALE INC·Filed 1978·Granted Dec 11, 1979·10 cites·11 claims
- 4562US4246965AMethod for operating an in situ oil shale retort having channellingOCCIDENTAL OIL SHALE INC·Filed 1979·Granted Jan 27, 1981·23 cites·64 claims
- 4661US4281878AMethod for loading explosive laterally from a boreholeOCCIDENTAL OIL SHALE INC·Filed 1979·Granted Aug 4, 1981·9 cites·42 claims
- 4761US4243100AOperation of in situ oil shale retort with void at the topOCCIDENTAL OIL SHALE INC·Filed 1979·Granted Jan 6, 1981·14 cites·31 claims
- 4861US4149805AMethod and apparatus for measuring kerogen content of oil shaleOCCIDENTAL OIL SHALE INC·Filed 1977·Granted Apr 17, 1979·19 cites·27 claims
- 4960US4513665AMethod for loading explosive charges into blastholes formed in a subterranean formationOCCIDENTAL OIL SHALE INC·Filed 1983·Granted Apr 30, 1985·17 cites·27 claims
- 5060US4440447AMethod for forming an in situ oil shale retort with explosive expansion towards a horizontal free faceOCCIDENTAL OIL SHALE INC·Filed 1982·Granted Apr 3, 1984·23 cites·49 claims
Showing the top 50 of 157 patent records by PatentIndex Score.
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