Occidental Petroleum Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF178
 
  
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 1115

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6828383 Phenolic modified resorcinolic resins for rubber compoundingFeb 18, 03Dec 07, 04[C08L]
RE31629 Extraction process for purification of phosphoric acidOct 11, 79Jul 10, 84[C01B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4592901 Method of removing suspended solids from phosphoric acidExpiredSep 06, 84Jun 03, 86[C01B]
4426280 Process for removing nitrogen from shale oilExpiredFeb 09, 82Jan 17, 84[C10G]
4357802 Geothermal energy productionExpiredMar 21, 80Nov 09, 82[F03G]
4358344 Process for the production and recovery of fuel values from coalExpiredOct 03, 77Nov 09, 82[C10B]
4341077 Process and system for recovery of energy from geothermal brines and other hot water sourcesExpiredOct 15, 79Jul 27, 82[F03G]
4334959 Mixing method and apparatusExpiredApr 18, 80Jun 15, 82[C10B]
4326505 Surgical procedure for embryo transplants on animalsExpiredJan 07, 80Apr 27, 82[A61B]
4324102 Process and system for recovery of energy from geothermal brines and other hot water sourcesExpiredSep 19, 79Apr 13, 82[F03G]
4322222 Process for the gasification of carbonaceous materialsExpiredSep 03, 80Mar 30, 82[C10J]
4284614 Process for production of high purity phosphoric acid from high alumina phosphate pebble rockExpiredMay 01, 80Aug 18, 81[C01B]
4276748 Recovery of energy from geothermal brine and other hot water sourcesExpiredOct 05, 79Jul 07, 81[F03G]
4277448 Phosphoric acid process with high circulation ratesExpiredMay 26, 78Jul 07, 81[C01B, C01F]
4276155 Method for recycling the water used in a process for recovering glass from municipal wasteExpiredNov 07, 77Jun 30, 81[B03B]
4272960 Process and system for recovery of working fluid for direct contact heat exchangeExpiredFeb 06, 78Jun 16, 81[F03G]
4263124 Process for minimizing solids contamination of liquids from coal pyrolysisExpiredJun 05, 79Apr 21, 81[C10G, C10B]
4260584 Apparatus useful for wet process phosphoric acid productionExpiredMay 26, 78Apr 07, 81[C01B, B01J]
4243489 Pyrolysis reactor and fluidized bed combustion chamberExpiredNov 13, 78Jan 06, 81[C10G, C10B]
4243637 Uranium recovery from pre-treated phosphoric acidExpiredOct 11, 77Jan 06, 81[C01G]
4239599 Process for stripping oil from fluidized ash and char particles to prepare the particles for decarbonizationExpiredAug 23, 78Dec 16, 80[B09B, C10B]
4235854 Method for purifying wet process phosphoric acidExpiredAug 25, 77Nov 25, 80[C01B]

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