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Dover, OH, United States of America

Dover Chemical Corporation

USPTO Granted Patents = 31

CIPO Patents = 8

EPO Patents = 3

Trademarks = 22

Forward Citations = 120

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31 inventors (with patents filed for the assignee):

Donald R Stevenson (20 out of 30 patents)

Michael Jakupca (11 out of 15 patents)

Duong N Nguyen (8 out of 8 patents)

4. Jacob M Lance (6 out of 10 patents)

5. Don R Stevenson (4 out of 5 patents)

6. Jacob Weingart (3 out of 3 patents)

7. Thomas Jennings (3 out of 3 patents)

8. Mark E Harr (3 out of 3 patents)

9. Carroll W Larke (3 out of 3 patents)

10. Barbara A Wade (3 out of 3 patents)

11. James G MacNeil (3 out of 3 patents)

12. John Nussbaumer (2 out of 2 patents)

13. Nina Bersaglini (2 out of 2 patents)

14. Satyan Kodali (2 out of 2 patents)

15. Joseph C Fette (2 out of 2 patents)

31 patents: Sort by Forward Citations

1. 11008529 - Polymeric poly-phosphorus additives for: gear oil, grease, engine-oil, combustion-engine lubricant, automatic transmission fluid, anti-wear agents, two-cycle engine lubricant, or marine-engine lubricant (2021-05-18),

2. 10745639 - Polymeric poly-phosphorus lubricant additives for metal working (2020-08-18),

3. 10597945 - Coiled-tubing fluid-lubricant composition and related methods (2020-03-24),

4. 9982112 - Copolymeric polyphosphite polymer stabilizers (2018-05-29),

5. 9963572 - Chlorinated ester polyvinyl-chloride secondary plasticizer and related methods (2018-05-08),

6. 9745425 - Cycloaliphatic polyphosphite (2017-08-29),

7. 9382201 - Light-colored metal working additives (2016-07-05),

8. 8981042 - Cycloaliphatic polyphosphite polymer stabilizers (2015-03-17),

9. 8664171 - Nitrated extreme pressure additives and blends (2014-03-04),

10. 8563637 - Alkylphenol free-liquid polymeric phosphite polymer stabilizers (2013-10-22),

11. 8445567 - Method for reducing plate-out of solid phosphites in polymers (2013-05-21),

12. 8278490 - Phase transfer catalyst for synthesis of pentaerythritol diphosphites (2012-10-02),

13. 8258215 - Mixed alkyl-alkylaryl-phenyl phosphite polymer additive (2012-09-04),

14. 8058317 - Nitrated extreme pressure additives and blends (2011-11-15),

15. 7960323 - Nitrated extreme pressure additives (2011-06-14),

Dover Chemical Corporation, founded in 1955, is a leading manufacturer and supplier of specialty chemical products. With a strong focus on innovation and quality, Dover Chemical offers a wide range of additives and intermediates used in various industries including plastics, rubber, and lubricants. The company prides itself on its commitment to customer satisfaction and continuous improvement, aiming to provide cost-effective solutions that meet the specific needs of its clients. Visit their website to learn more about their products and services.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

31 Patents

#2 in Dover, OH

#452 in Ohio

#10,543 in US

#20,605 in the World

Dover, OH, United States of America

Dover Chemical Corporation

Forward Citations = 120

31 inventors:

Donald R Stevenson (20 out of 30 patents)

Michael Jakupca (11 out of 15 patents)

Duong N Nguyen (8 out of 8 patents)

4. Jacob M Lance (6 out of 10 patents)

5. Don R Stevenson (4 out of 5 patents)

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