Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
RC

Richard E. Cherpeck — 89 Patents

Chevron: 97 patents #14 of 4,788Top 1%
Cotati, CA: #1 of 64 inventorsTop 2%
California: #2,823 of 386,348 inventorsTop 1%
Overall (All Time): #18,310 of 4,157,543Top 1%
89 Patents All Time
Richard E. Cherpeck has been granted 89 US patents while listed as an inventor at Chevron. The first was granted in 1983 and the most recent in October 2023. Richard E. Cherpeck ranks #18,310 of 4,157,543 US inventors in our database (top 0.44%). Patent records list Richard E. Cherpeck in Cotati, CA, US.

Issued Patents All Time

Showing 1–25 of 89 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
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 $1,359,580,000
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 $250,385,000
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 $185,566,000
8877972 Alkylene oxide-adducted hydrocarbyl amides Francois Simard 2014-11-04 $165,339,000
8710147 Carbonyl-ene functionalized polyolefins Ruth Smocha 2014-04-29 $121,114,000
8623798 Lubricating oil compositions containing a tetraalkyl-napthalene-1,8 diamine antioxidant Carrie Y. Chan, Gaurav Bhalla 2014-01-07 $130,401,000
8003583 Benzo[b]perhydroheterocyclic arylamines and lubricating oil compositions Carrie Y. Chan 2011-08-23 $530,958,000
7790924 Process for preparing alkylene oxide-adducted hydrocarbyl amides Francois Simard 2010-09-07 $100,248,000
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 $67,621,000
7683017 Synergistic lubricating oil composition containing a mixture of a nitro-substituted diarylamine and a diarylamine Carrie Y. Chan 2010-03-23 $122,920,000
7501386 Synergistic lubricating oil composition containing a mixture of a benzo[b]perhydroheterocyclic arylamine and a diarylamine Carrie Y. Chan 2009-03-10 $204,702,000
7285518 Dibenzo[b]perhydroheterocyclic amines and lubricating oil compositions Carrie Y. Chan 2007-10-23 $765,130,000
6660050 Method for controlling deposits in the fuel reformer of a fuel cell system Gunther H. Dieckmann, James D. Kramer 2003-12-09 $304,485,000
6384280 Process for the preparation of polyalkylphenoxyaminoalkanes 2002-05-07 $265,076,000
6352566 Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same 2002-03-05 $607,827,000
6258133 Poly (oxyalkylene) pyridyl and piperidyl ethers and fuel compositions containing the same 2001-07-10 $447,988,000
6221116 Aminocarbamates of polyalkylphenoxyalkanols and fuel compositions containing the same 2001-04-24 $525,471,000
6165236 Poly(oxyalkylene) pyridyl and piperidyl esters and fuel compositions containing the same 2000-12-26 $511,466,000
6136051 Method and composition for reduction of combustion chamber deposits Ralph M. Forde, Majid Ahmadi 2000-10-24 $257,185,000