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For the Inventor, By the Inventor

San Francisco, CA, United States of America

Chevron Chemical Company LLC


USPTO Granted Patents = 223


Trademarks = 29

Forward Citations = 2,604

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183 inventors (with patents filed for the assignee):

goldMedal Richard E Cherpeck (56 out of 89 patents)

silverMedal James Joseph Harrison (19 out of 75 patents)

bronzeMedal Ta Yen Ching (18 out of 55 patents)

4.  William R Ruhe, Jr (18 out of 49 patents)

5.  James Hongxue Wang (14 out of 121 patents)

6.  John V Heyse (13 out of 27 patents)

7.  Leslie P Theard (13 out of 21 patents)

8.  Lewis R Compton (12 out of 12 patents)

9.  Robert A Innes (10 out of 29 patents)

10.  Bernard F Mulaskey (9 out of 28 patents)

11.  Kiyoshi Katsumoto (8 out of 19 patents)

12.  David L Beach (8 out of 16 patents)

13.  Victor P Kurkov (8 out of 35 patents)

14.  David Rosendale (8 out of 8 patents)

15.  Gerald J Nacamuli (7 out of 11 patents)


Core Competencies:
Catalyst Compounds
Oxygen Scavenging Packaging
Polyalkylene Succinimides
Fuel Compositions
Lubricating Oils
Polyalphaolefins
Aromatic Esters
Zeolite Catalysts
Drilling Fluids
Polyalkenyl Derivatives
Combustion Chamber Deposits
High Performance Polyethylene

223 patents:

1. 6821921 - Catalyst compounds with &bgr;-diiminate anionic ligands and processes for polymerizing olefins (2004-11-23),
2. 6673736 - Chromate ester catalyst and method of using same to produce high performance polyethylene products (2004-01-06),
3. 6569506 - Oxygen scavenging packaging (2003-05-27),
4. 6451920 - Process for making polyalkylene/maleic anhydride copolymer (2002-09-17),
5. 6410491 - Polyalkenyl sulfonates (2002-06-25),
6. 6395948 - High viscosity polyalphaolefins prepared with ionic liquid catalyst (2002-05-28),
7. 6358892 - Polyalkylene succinimides and post-treated derivatives thereof (2002-03-19),
8. 6352566 - Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same (2002-03-05),
9. 6333087 - Oxygen scavenging packaging (2001-12-25),
10. 6294506 - Lubricating oils having carbonated sulfurized metal alkyl phenates and carbonated metal alkyl aryl sulfonates (2001-09-25),
11. 6291733 - Process for dimerizing olefins (2001-09-18),
12. 6291408 - Detergent-dispersant additives for lubricating oils of the sulphurized and superalkalized alkaline earth alkylsalicylate-alkylphenate type (2001-09-18),
13. 6281404 - Process for olefin isomerization (2001-08-28),
14. 6262001 - Unsulfurized, alkali meta-free, additive for lubricating oils (2001-07-17),
15. 6258133 - Poly (oxyalkylene) pyridyl and piperidyl ethers and fuel compositions containing the same (2001-07-10),
Chevron Chemical Company LLC is a global leader in the manufacturing and marketing of petrochemical products. With a strong focus on innovation and sustainable solutions, Chevron Chemical Company offers a wide range of chemicals, polymers, solvents, and specialty products to various industries including automotive, construction, agriculture, and packaging. The company is committed to delivering high-quality products while minimizing environmental impact and promoting the well-being of communities.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

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223 Patents

#34 in San Francisco, CA

#407 in California

#1,798 in US

#3,708 in the World

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San Francisco, CA, United States of America

Chevron Chemical Company LLC

Forward Citations = 2,604

183 inventors:

goldMedal Richard E Cherpeck (56 out of 89 patents)

silverMedal James Joseph Harrison (19 out of 75 patents)

bronzeMedal Ta Yen Ching (18 out of 55 patents)

4.  William R Ruhe, Jr (18 out of 49 patents)

5.  James Hongxue Wang (14 out of 121 patents)

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