Chevron Research and Technology Company

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C10G CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION 3133
 
  
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1594
 
  
 
C07C ACYCLIC OR CARBOCYCLIC COMPOUNDS 12126
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF772
 
  
 
C10M LUBRICATING COMPOSITIONS 742
 
  
 
C10L FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS 636
 
  
 
C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 4121
 
  
 
C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS 3113
 
  
 
B01D SEPARATION 2132
 
  
 
C25D PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING 249

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6497736 Fuel compositions containing hydroxyalkyl-substituted aminesDec 23, 91Dec 24, 02[C10L]
6001779 Lubricating oil composition having an ashless wear inhibitorSep 08, 93Dec 14, 99[C10M]
RE36403 Gasoline octane enhancement in fluid catalytic cracking process with split feed injection to riser reactorDec 16, 94Nov 23, 99[C10G]
5879655 Method of making microporous non-zeolitic molecular sievesNov 02, 92Mar 09, 99[C01B]
5616237 Split feed injection fluid catalytic cracking processApr 01, 96Apr 01, 97[C10G]
5593570 Catalyst system for combined hydrotreating and hydrocracking and a process for upgrading hydrocarbonaceous feedstocksMay 09, 95Jan 14, 97[C10G]
5571878 Ethylene-alkyl acrylate copolymers and derivatives having improved melt-point temperatures and adhesive strength and processes for preparing sameApr 26, 94Nov 05, 96[C08F]
5569405 Low phosphorous engine oil compositions and additive compositionsAug 27, 93Oct 29, 96[C10M]
5556900 Process for producing a polyepoxy polymer-linked-asphalt thermoplastic compositionNov 10, 94Sep 17, 96[C08L]
5550307 Increased dimer yield of olefin oligomers through catalyst modificationsAug 31, 94Aug 27, 96[C07C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2002/0038,525 FUEL COMPOSITION FOR TWO-CYCLE ENGINESAbandonedSep 16, 94Apr 04, 02[C10L]
6258256 Cracking processesExpiredJan 04, 94Jul 10, 01[C01G]
5755835 Fuel additive compositions containing aliphatic amines and polyalkyl hydroxyaromaticsExpiredDec 28, 92May 26, 98[C10L]
5641825 Oxygen scavenging homogeneous modified polyolefin-oxidizable polymer-metal salt blendsExpiredMar 28, 94Jun 24, 97[C08K]
5625004 Two-step thermal process for the preparation of alkenyl succinic anhydrideExpiredJul 23, 92Apr 29, 97[C10M, C08F]
5575902 Cracking processesExpiredJul 01, 94Nov 19, 96[C10G]
5538521 Fuel compositions containing polyalkyl and poly(oxyalkylene)aromatic estersExpiredDec 23, 93Jul 23, 96[C10L]
5526684 Method and apparatus for measuring multiphase flowsExpiredJan 10, 94Jun 18, 96[G01F]
5520329 Method and apparatus for compensating for environmental effectExpiredApr 01, 94May 28, 96[G01K]
5516342 Fuel additive compositions containing poly(oxyalkylene) hydroxyaromatic ethers and aliphatic aminesExpiredDec 28, 92May 14, 96[C10L]
5502266 Method of separating well fluids produced from a gas condensate reservoirExpiredOct 19, 92Mar 26, 96[C07C]
5498785 Continuous process for the aminolysis of ethylene copolymersExpiredJan 14, 94Mar 12, 96[C08F]
5484463 Poly(oxyalkylene) hydroxy and amino aromatic carbamates and fuel compositions containing the sameExpiredMay 02, 94Jan 16, 96[C10L]
5482522 Mannich condensation products of poly(oxyalkylene) hydroxyaromatic esters and fuel compositions containing the sameExpiredDec 30, 93Jan 09, 96[C10L]
D365521 Oil containerExpiredOct 08, 93Dec 26, 95[]
5462567 Fuel additive compositions containing poly(oxyalkylene)hydroxyaromatic esters and aliphatic aminesExpiredDec 28, 92Oct 31, 95[C10L]
5441544 Fuel compositions containing substituted poly(oxyalkylene) aromatic ethersExpiredDec 23, 93Aug 15, 95[C10L]
5434293 Alkylation of alkyl salicylate using a long chain carbon feedExpiredDec 23, 93Jul 18, 95[C07C]
5427591 Poly(oxyalkylene) hydroxyaromatic esters and fuel compositions containing the sameExpiredDec 18, 92Jun 27, 95[C10L]
5425933 Method for preparing crystalline materials using heterobridged aza-polycyclic templating agentsExpiredFeb 08, 94Jun 20, 95[C01B]

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