RC

Richard E. Cherpeck

Chevron: 97 patents #14 of 4,788Top 1%
Overall (All Time): #18,403 of 4,157,543Top 1%
89
Patents All Time

Issued Patents All Time

Showing 25 most recent of 89 patents

Patent #TitleCo-InventorsDate
11802255 Composition and method for preventing or reducing low speed pre-ignition in direct injected spark-ignited engines Ian G. Elliott, Amir Gamal Maria, Theresa Liang Gunawan 2023-10-31
11441477 Method for preventing or reducing low speed pre-ignition in direct injected spark-ignited engines with silane-containing lubricant John Robert Miller, Ian G. Elliott, Theresa Liang Gunawan, Amir Gamal Maria 2022-09-13
11401482 Method for preventing or reducing low speed pre-ignition in direct injected spark-ignited engines with cobalt-containing lubricant Ian G. Elliott, Amir Gamal Maria, Theresa Liang Gunawan 2022-08-02
11142715 Amino alkanediols and carboxylate salts as additives for improving fuel efficiency Theresa Liang Gunawan, Amir Gamal Maria 2021-10-12
10844307 Method for preventing or reducing low speed pre-ignition in direct injected spark-ignited engines with manganesemanganese-containing lubricant Ian G. Elliott, Amir Gamal Maria, Theresa Liang Gunawan, Andrew Michael Thomas 2020-11-24
9523061 Lubricating oil compositons Kenneth D. Nelson, Alexander B. Boffa, William M. Kleiser, Stephen D. Stults, James A. McGeehan +1 more 2016-12-20
9303229 Lubricating oil composition Kenneth D. Nelson, Alexander B. Boffa, William M. Kleiser, Stephen D. Stults, James A. McGeehan +1 more 2016-04-05
9193931 Lubricating oil compositions Kenneth D. Nelson, Alexander B. Boffa, William M. Kleiser, Stephen D. Stults, James A. McGeehan +1 more 2015-11-24
8920524 Polyisobutenyl alcohols and fuel compositions Ruth Smocha 2014-12-30
8877972 Alkylene oxide-adducted hydrocarbyl amides Francois Simard 2014-11-04
8710147 Carbonyl-ene functionalized polyolefins Ruth Smocha 2014-04-29
8623798 Lubricating oil compositions containing a tetraalkyl-napthalene-1,8 diamine antioxidant Carrie Y. Chan, Gaurav Bhalla 2014-01-07
8003583 Benzo[b]perhydroheterocyclic arylamines and lubricating oil compositions Carrie Y. Chan 2011-08-23
7790924 Process for preparing alkylene oxide-adducted hydrocarbyl amides Francois Simard 2010-09-07
7744661 Fuel composition containing an alkylene oxide-adducted hydrocarbyl amide having reduced amine by-products Bernard J. Braakman, Brian Graskow, Francois Simard 2010-06-29
7683017 Synergistic lubricating oil composition containing a mixture of a nitro-substituted diarylamine and a diarylamine Carrie Y. Chan 2010-03-23
7501386 Synergistic lubricating oil composition containing a mixture of a benzo[b]perhydroheterocyclic arylamine and a diarylamine Carrie Y. Chan 2009-03-10
7285518 Dibenzo[b]perhydroheterocyclic amines and lubricating oil compositions Carrie Y. Chan 2007-10-23
6660050 Method for controlling deposits in the fuel reformer of a fuel cell system Gunther H. Dieckmann, James D. Kramer 2003-12-09
6384280 Process for the preparation of polyalkylphenoxyaminoalkanes 2002-05-07
6352566 Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same 2002-03-05
6258133 Poly (oxyalkylene) pyridyl and piperidyl ethers and fuel compositions containing the same 2001-07-10
6221116 Aminocarbamates of polyalkylphenoxyalkanols and fuel compositions containing the same 2001-04-24
6165236 Poly(oxyalkylene) pyridyl and piperidyl esters and fuel compositions containing the same 2000-12-26
6136051 Method and composition for reduction of combustion chamber deposits Ralph M. Forde, Majid Ahmadi 2000-10-24