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For the Inventor, By the Inventor

San Ramon, CA, United States of America

Chevron Oronite Company LLC


USPTO Granted Patents = 293



Trademarks = 4

Forward Citations = 946

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

6.  William R Ruhe, Jr (23 out of 49 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 17 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.  Elaine S Yamaguchi (13 out of 22 patents)

15.  Yat Fan Suen (12 out of 13 patents)


Core Competencies:
Lubricating Oil Composition
Friction Modifier
Olefin Sulfonates
Ashless Additive Composition
Fuel Additives
Polyimide Dispersants
Marine Diesel Lubricants
Biodiesel Fuel
Hydrocarbon Liquids
Amino Alkanediols
Polyolefin Dispersants
Tractor Hydraulic Fluids

293 patents:

1. 12503665 - Ethylene-propylene branched copolymers as viscosity modifiers (2025-12-23),
2. 12448583 - Lubricating oil composition (2025-10-21),
3. 12391898 - Friction modifier system (2025-08-19),
4. 12391867 - Olefin sulfonates (2025-08-19),
5. 12384981 - Lubricating oil composition for hybrid vehicles (2025-08-12),
6. 12331260 - Ashless additive composition (2025-06-17),
7. 12270005 - Lubricant containing polyphosphate additives (2025-04-08),
8. 12209226 - Fuel additives for reducing low speed pre-ignition events (2025-01-28),
9. 12163104 - Bimodal copolymer compositions useful as oil modifiers and lubricating oils comprising the same (2024-12-10),
10. 12103908 - Distillation process for producing a low TPP phenate (2024-10-01),
11. 12030842 - ALKYL-substituted hydroxyaromatic compounds with highly structured ALKYL branches (2024-07-09),
12. 12018225 - Succinimide dispersants post-treated with heteroaromatic glycidyl ethers that exhibit good soot handling performance (2024-06-25),
13. 12012549 - Methods of using olefin sulfonates (2024-06-18),
14. 12012547 - Olefin sulfonate compositions (2024-06-18),
15. 11926802 - Lubricating oil composition with viscosity modifier based on syndiotactic propylene-based ethylene- propylene copolymers with improved properties (2024-03-12),
Chevron Oronite Company LLC is a leading global manufacturer and marketer of specialty additives for fuels and lubricants. With over 100 years of experience, they deliver innovative solutions to improve the performance of engines and machinery, maximize fuel economy, and reduce emissions. Their products are used in various industries, including automotive, marine, power generation, and industrial manufacturing. Chevron Oronite is committed to sustainability, driving innovation, and supporting customers' growth.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

293 Patents

#4 in San Ramon, CA

#324 in California

#1,436 in US

#2,952 in the World

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San Ramon, CA, United States of America

Chevron Oronite Company LLC

Forward Citations = 946

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

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