Chevron Research 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 359
 
 
 
A01N PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF 194
 
 
 
B01J CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS 1108
 
 
 
C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS 1119
 
 
 
C10M LUBRICATING COMPOSITIONS 148
 
 
 
G08C TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS 154
 
 
 
H04Q SELECTING 1109

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5593573 Demetalation of hydrocarbonaceous feedstocks using sulfuric acid and salts thereofJun 06, 95Jan 14, 97[C10G]
5464623 Process for pelletizing insecticidal N-hydrocarboyl phosphoroamidothioates and phosphoroamidodithioatesAug 18, 89Nov 07, 95[A01N]
5409598 Method of hydroprocessingMar 21, 94Apr 25, 95[C10G]
5393407 Hydrocarbon conversion utilizing a low-aluminum boron beta zeoliteJun 26, 92Feb 28, 95[C10G]
5315053 Normally liquid alpha-olefin oligomers useful as base stocks and viscosity index improvers, and lubricating oils containing sameJul 06, 93May 24, 94[C10M]
5094991 Slurry catalyst for hydroprocessing heavy and refractory oilsFeb 15, 91Mar 10, 92[B01J]
RE31089 Transducer system for continuous monitoring liquid levels in _storage tanks and the likeDec 29, 80Nov 23, 82[H04Q, G08C]
RE30922 Vinyl end-capped polyimide oligomersAug 25, 80May 04, 82[501., C08G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5603821 Low-aluminum boron beta zeoliteExpiredSep 28, 94Feb 18, 97[C10G]
5364546 Lubricating oil compositions containing very long chain alkylphenyl poly(oxyalkylene) aminocarbamatesExpiredApr 19, 90Nov 15, 94[C10M]
5312460 Fuel compositions containing substantially straight chain alkylphenyl poly (oxypropylene) amino carbamatesExpiredNov 17, 92May 17, 94[C10L]
5312965 Lubricating oil composition containing substantially straight chain alkylphenyl poly(oxypropylene) aminocarbamatesExpiredNov 27, 91May 17, 94[C10M]
5270018 Apparatus for withdrawing a particulate solid from a packed, non-fluidized bedExpiredDec 11, 91Dec 14, 93[B01J]
5261461 Pipeline rehabilitation articulated gasketed-joint pipeExpiredAug 16, 89Nov 16, 93[F16L]
5246604 Grease composition with improved extreme pressure and antiwear propertiesExpiredOct 26, 92Sep 21, 93[C10M]
5246605 Polyurea-based grease with metal borate and antimony additivesExpiredOct 26, 92Sep 21, 93[C10M]
5238662 Processes for recovering precious metalsExpiredMay 11, 92Aug 24, 93[C01G]
5177276 Alpha-olefin oligomers useful as base stocks and viscosity index improvers, and lubricating oils containing sameExpiredNov 04, 88Jan 05, 93[C07C]
5166111 Low-aluminum boron beta zeoliteExpiredOct 09, 90Nov 24, 92[B01J]
5166112 Isomerization catalyst and process for its useExpiredOct 03, 91Nov 24, 92[B01J]
5160601 Hydrocarbon conversion with octane-enhancing catalystsExpiredSep 04, 90Nov 03, 92[C10G]
5149421 Catalytic dewaxing process for lube oils using a combination of a silicoaluminophosphate molecular sieve catalyst and an aluminosilicate zeolite catalystExpiredAug 31, 89Sep 22, 92[C10G]
5141660 Monoalkylamine complexes of borated alkyl catechols and lubricating oil compositions containing the sameExpiredSep 27, 89Aug 25, 92[C10M]
5139647 Process for preparing low pour middle distillates and lube oil using a catalyst containing a silicoaluminophosphate molecular sieveExpiredAug 14, 89Aug 18, 92[C10G]
5135641 Catalytic cracking process employing silica/alumina cogel catalystsExpiredSep 04, 90Aug 04, 92[C10G]
5120425 Use of zeolite SSZ-33 in hydrocarbon conversion processesExpiredMay 18, 90Jun 09, 92[C10G]
5114483 Open-graded asphaltExpiredJul 14, 88May 19, 92[C08L]
5113375 Method and apparatus for testing geophonesExpiredNov 19, 90May 12, 92[G01V]

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