Assignee
CHEVRON RES & TECH
US·267 granted patents·1 pending application·11,633 citations·filing 1988–1996
Top patents by PatentIndex Score
268 records- 0199US5334321AModified high molecular weight succinimidesCHEVRON RES & TECH·Filed 1993·Granted Aug 2, 1994·245 cites·37 claims
- 0299US5316753AZeolite SSZ-35CHEVRON RES & TECH·Filed 1992·Granted May 31, 1994·180 cites·22 claims
- 0399US5300701AProcess for the preparation of polyisobutyl hydroxyaromaticsCHEVRON RES & TECH·Filed 1992·Granted Apr 5, 1994·155 cites·14 claims
- 0499US5175225AProcess for preparing polymeric dispersants having alternating polyalkylene and succinic groupsCHEVRON RES & TECH·Filed 1989·Granted Dec 29, 1992·123 cites·12 claims
- 0599US5135638AWax isomerization using catalyst of specific pore geometryCHEVRON RES & TECH·Filed 1990·Granted Aug 4, 1992·324 cites·35 claims
- 0698US5282958AUse of modified 5-7 a pore molecular sieves for isomerization of hydrocarbonsCHEVRON RES & TECH·Filed 1990·Granted Feb 1, 1994·299 cites·14 claims
- 0798US5246566AWax isomerization using catalyst of specific pore geometryCHEVRON RES & TECH·Filed 1992·Granted Sep 21, 1993·223 cites·29 claims
- 0898US5149894AAlkylation using zeolite SSZ-25CHEVRON RES & TECH·Filed 1991·Granted Sep 22, 1992·154 cites·54 claims
- 0997US5393309AFuel additive compositions containing polyisobutenyl succinimidesCHEVRON RES & TECH·Filed 1994·Granted Feb 28, 1995·95 cites·18 claims
- 1097US5356552AChlorine-free lubricating oils having modified high molecular weight succinimidesCHEVRON RES & TECH·Filed 1993·Granted Oct 18, 1994·122 cites·74 claims
- 1197US5286799ATwo-step free radical catalyzed process for the preparation of alkenyl succinic anhydrideCHEVRON RES & TECH·Filed 1992·Granted Feb 15, 1994·113 cites·13 claims
- 1297US5252527AZeolite SSZ-32CHEVRON RES & TECH·Filed 1991·Granted Oct 12, 1993·143 cites·21 claims
- 1397US5145003AMethod for in-situ heated annulus refining processCHEVRON RES & TECH·Filed 1991·Granted Sep 8, 1992·297 cites·24 claims
- 1497US5112507APolymeric dispersants having alternating polyalkylene and succinic groupsCHEVRON RES & TECH·Filed 1989·Granted May 12, 1992·180 cites·68 claims
- 1597US5089463AHydrodemetalation and hydrodesulfurization catalyst of specified macroporosityCHEVRON RES & TECH·Filed 1990·Granted Feb 18, 1992·187 cites·13 claims
- 1696US5158665ASynthesis of a crystalline silicoaluminophosphateCHEVRON RES & TECH·Filed 1991·Granted Oct 27, 1992·122 cites·63 claims
- 1796US5081323ALiquid phase alkylation or transalkylation process using zeolite betaCHEVRON RES & TECH·Filed 1989·Granted Jan 14, 1992·93 cites·16 claims
- 1896US5054551AIn-situ heated annulus refining processCHEVRON RES & TECH·Filed 1990·Granted Oct 8, 1991·256 cites·20 claims
- 1995US5319030AOne-step process for the preparation of alkenyl succinic anhydrideCHEVRON RES & TECH·Filed 1992·Granted Jun 7, 1994·112 cites·16 claims
- 2095US5194235ASynthesis of SSZ-16 zeolite catalystCHEVRON RES & TECH·Filed 1992·Granted Mar 16, 1993·85 cites·6 claims
- 2195US5162282AHeavy oil hydroprocessing with group VI metal slurry catalystCHEVRON RES & TECH·Filed 1991·Granted Nov 10, 1992·97 cites·111 claims
- 2295US5106801AZeolite SSZ-31CHEVRON RES & TECH·Filed 1990·Granted Apr 21, 1992·62 cites·33 claims
- 2395US5057638AProcess for making 1-hexene from 1-buteneCHEVRON RES & TECH·Filed 1990·Granted Oct 15, 1991·70 cites·18 claims
- 2494US5305829AOil production from diatomite formations by fracture steamdriveCHEVRON RES & TECH·Filed 1992·Granted Apr 26, 1994·287 cites·9 claims
- 2594US5300210AHydrocarbon conversion process using zeolite SSZ-32 as catalystCHEVRON RES & TECH·Filed 1993·Granted Apr 5, 1994·56 cites·16 claims
- 2694US5076908AMethod and apparatus for an on-stream particle replacement system for countercurrent contact of a gas and liquid feed stream with a packed bedCHEVRON RES & TECH·Filed 1989·Granted Dec 31, 1991·72 cites·13 claims
- 2793US5625004ATwo-step thermal process for the preparation of alkenyl succinic anhydrideCHEVRON RES & TECH·Filed 1992·Granted Apr 29, 1997·56 cites·13 claims
- 2893US5298152AProcess to prevent catalyst deactivation in activated slurry hydroprocessingCHEVRON RES & TECH·Filed 1992·Granted Mar 29, 1994·74 cites·13 claims
- 2993US5196625ADetergent grade to C10 to C28 olefins, (C10 to C28 alkyl) benzenes and (C10 to C28 alkyl) benzene sulfonates and process for preparing same using a phosphite containing catalystCHEVRON RES & TECH·Filed 1992·Granted Mar 23, 1993·52 cites·10 claims
- 3093US5192335AFuel additive compositions containing poly(oxyalkylene) amines and polyalkyl hydroxyaromaticsCHEVRON RES & TECH·Filed 1992·Granted Mar 9, 1993·68 cites·23 claims
- 3193US5164075AHigh activity slurry catalystCHEVRON RES & TECH·Filed 1990·Granted Nov 17, 1992·104 cites·9 claims
- 3292US5416697AMethod for determining rock mechanical properties using electrical log dataCHEVRON RES & TECH·Filed 1992·Granted May 16, 1995·122 cites·3 claims
- 3392US5401386AReforming process for producing high-purity benzeneCHEVRON RES & TECH·Filed 1993·Granted Mar 28, 1995·76 cites·52 claims
- 3492US5268161AProcess for preparing molecular sieves using a 1,3,3,8,8-pentamethyl-3-azoniabicyclo [3.2.1] octane templateCHEVRON RES & TECH·Filed 1992·Granted Dec 7, 1993·60 cites·20 claims
- 3592US5190642AHydroconversion catalystCHEVRON RES & TECH·Filed 1991·Granted Mar 2, 1993·85 cites·15 claims
- 3692US5189642ASeafloor seismic recorderCHEVRON RES & TECH·Filed 1991·Granted Feb 23, 1993·211 cites·20 claims
- 3792US5085276AProduction of oil from low permeability formations by sequential steam fracturingCHEVRON RES & TECH·Filed 1990·Granted Feb 4, 1992·312 cites·12 claims
- 3891US5274605ADepth migration method using Gaussian beamsCHEVRON RES & TECH·Filed 1992·Granted Dec 28, 1993·133 cites·7 claims
- 3991US5215955AResid catalyst with high metals capacityCHEVRON RES & TECH·Filed 1991·Granted Jun 1, 1993·89 cites·1 claims
- 4091US5196624ADetergent grade to C10 to C28 olefins, (C10 to C28 alkyl)benzenes and C10 to C28 alkyl) benzene sulfonates and process for preparing same using a phosphine containing catalystCHEVRON RES & TECH·Filed 1992·Granted Mar 23, 1993·39 cites·10 claims
- 4191US5178749ACatalytic process for treating heavy oilsCHEVRON RES & TECH·Filed 1990·Granted Jan 12, 1993·131 cites·24 claims
- 4291US5115670AMeasurement of fluid properties of two-phase fluids using an ultrasonic meterCHEVRON RES & TECH·Filed 1990·Granted May 26, 1992·87 cites·10 claims
- 4390US5389112ALow emissions diesel fuelCHEVRON RES & TECH·Filed 1993·Granted Feb 14, 1995·66 cites·8 claims
- 4490US5371121ABitumen compositions containing bitumen, polymer and sulfurCHEVRON RES & TECH·Filed 1993·Granted Dec 6, 1994·75 cites·20 claims
- 4590US5208005ASynthesis of a crystalline silicoaluminophosphateCHEVRON RES & TECH·Filed 1991·Granted May 4, 1993·59 cites·17 claims
- 4689US5413700ATreating oxidized steels in low-sulfur reforming processesCHEVRON RES & TECH·Filed 1993·Granted May 9, 1995·48 cites·28 claims
- 4789US5331028APolymer-modified asphalt composition and process for the preparation thereofCHEVRON RES & TECH·Filed 1993·Granted Jul 19, 1994·56 cites·53 claims
- 4889US5322615AMethod for removing sulfur to ultra low levels for protection of reforming catalystsCHEVRON RES & TECH·Filed 1991·Granted Jun 21, 1994·63 cites·46 claims
- 4989US5155075ALow temperature regeneration of coke deactivated reforming catalystsCHEVRON RES & TECH·Filed 1991·Granted Oct 13, 1992·68 cites·2 claims
- 5089US5089462AHydroconversion catalyst and method for making the catalystCHEVRON RES & TECH·Filed 1990·Granted Feb 18, 1992·57 cites·18 claims
Showing the top 50 of 268 patent records by PatentIndex Score.
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