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For the Inventor, By the Inventor

San Ramon, CA, United States of America

Chevron Oronite Company LLC

USPTO Granted Patents = 301

% Expired Patents = 21.6



Trademarks = 4

Forward Citations = 969

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218 inventors (with patents filed for the assignee):

goldMedal Casey Don Stokes (32 out of 32 patents)

silverMedal Kenneth Dale Nelson (32 out of 34 patents)

bronzeMedal James Joseph Harrison (29 out of 75 patents)

4.  Curtis Bay Campbell (27 out of 54 patents)

5.  William R Ruhe, Jr (25 out of 51 patents)

6.  Curt B Campbell (24 out of 31 patents)

7.  Gilles P Sinquin (19 out of 19 patents)

8.  Richard E Cherpeck (19 out of 89 patents)

9.  Alexander B Boffa (17 out of 18 patents)

10.  Pierre Tequi (15 out of 21 patents)

11.  Robert H Wollenberg (15 out of 18 patents)

12.  Robson F Storey (14 out of 42 patents)

13.  Jean-Louis Marie Le Coent (14 out of 41 patents)

14.  Yat Fan Suen (13 out of 13 patents)

15.  Elaine S Yamaguchi (13 out of 22 patents)


Core Competencies:
Lubricating Oil
Viscosity Modifiers
Friction Modifiers
Fuel Additives
Corrosion Prevention
Dispersants
Polymer Solutions
Marine Diesel Lubricants
Soot Handling
Hydrocarbon Liquids
Antioxidants
Alkyl Compounds

301 patents:

1. 12723214 - Lubricating engine oil for hybrid or plug-in hybrid electric vehicles (2026-09-01),
2. 12723213 - Lubricating oil compositions with improved oxidative performance comprising alkylated diphenylamine antioxidant and carboxylate detergents (2026-09-01),
3. 12692450 - Compositions for mitigating low speed pre-ignition events (2026-07-28),
4. 12686831 - Lubricating oil composition for hybrid vehicles (2026-07-21),
5. 12618309 - Methods for preventing corrosion in flexible pipe with passivating agents (2026-05-05),
6. 12606769 - Antioxidants with high mono-alkylated diphenylamine content (2026-04-21),
7. 12595324 - Ethylene copolymers and use as viscosity modifiers (2026-04-07),
8. 12577492 - Succinimide dispersants post-treated with aromatic glycidyl ethers that exhibit good soot handling performance (2026-03-17),
9. 12503665 - Ethylene-propylene branched copolymers as viscosity modifiers (2025-12-23),
10. 12448583 - Lubricating oil composition (2025-10-21),
11. 12391898 - Friction modifier system (2025-08-19),
12. 12391867 - Olefin sulfonates (2025-08-19),
13. 12384981 - Lubricating oil composition for hybrid vehicles (2025-08-12),
14. 12331260 - Ashless additive composition (2025-06-17),
15. 12270005 - Lubricant containing polyphosphate additives (2025-04-08),
Company Overview
Chevron Oronite Company LLC, based in San Ramon, California, specializes in the development and manufacturing of advanced lubricating oil compositions. The company focuses on a range of core technologies including viscosity modifiers, friction modifiers, fuel additives, and corrosion prevention solutions. With a commitment to innovation, Chevron Oronite plays a crucial role in enhancing the performance and efficiency of lubricants, particularly in marine diesel applications, contributing to improved engine longevity and environmental sustainability.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

301 Patents

#3 in San Ramon, CA

#306 in California

#1,459 in US

#2,978 in the World

San Ramon, CA (US)
San Ramon, CA, United States of America

Chevron Oronite Company LLC

Forward Citations = 969

218 inventors:

goldMedal Casey Don Stokes (32 out of 32 patents)

silverMedal Kenneth Dale Nelson (32 out of 34 patents)

bronzeMedal James Joseph Harrison (29 out of 75 patents)

4.  Curtis Bay Campbell (27 out of 54 patents)

5.  William R Ruhe, Jr (25 out of 51 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chevron Oronite Company LLC. Retrieved from https://idiyas.com/company/chevron-oronite-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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