For the Inventor, By the Inventor

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Akron, OH, United States of America

Flexsys America L.p.

USPTO Granted Patents = 28

EPO Patents = 3

Trademarks = 6

Forward Citations = 171

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32 inventors (with patents filed for the assignee):

Donald L Fields, Jr (8 out of 16 patents)

Jayant S Lodaya (7 out of 7 patents)

Roger Keranen Rains (6 out of 10 patents)

4. Otto W Maender (6 out of 17 patents)

5. Michael K Stern (5 out of 27 patents)

6. Frederick Ignatz-Hoover (3 out of 18 patents)

7. Ralph Dale Triplett, Ii (3 out of 3 patents)

8. Raymond Anton Lohr, Jr (3 out of 3 patents)

9. Judicael Jacques Chapelet (2 out of 9 patents)

10. James K Bashkin (2 out of 16 patents)

11. Leandro Forciniti (2 out of 8 patents)

12. Horng-Jau Lin (2 out of 5 patents)

13. Antonio L DeVera (2 out of 2 patents)

14. Raymond A Lohr (2 out of 2 patents)

15. Brian K Cheng (2 out of 21 patents)

28 patents: Sort by Forward Citations

1. 12410144 - Triazinane derivatives and methods of making them (2025-09-09),

2. 11905256 - Triazinanes and methods of making them (2024-02-20),

3. 8207247 - Processes for preparing rubber blend compositions (2012-06-26),

4. 7718722 - Alkylthio- and aryl(heteroyl)thio-substituted p-phenylenediamines, their manufacture and their use in rubber (2010-05-18),

5. 7504539 - Process for preparing 4-aminodiphenylamine intermediates (2009-03-17),

6. 7183439 - Process for preparing 4-aminodiphenylamine intermediates (2007-02-27),

7. 6646029 - Pyrimidine derivatives as hardness stabilizers (2003-11-11),

8. 6583320 - Process for preparing 4-aminodiphenylamine intermediates (2003-06-24),

9. 6495723 - Zeolite support loaded with a base material for use in the coupling of aniline and nitrobenzene (2002-12-17),

10. 6465604 - Pyrimidine derivatives as hardness stabilizers (2002-10-15),

11. 6420581 - Manufacture of zinc hexasulfide amine complexes (2002-07-16),

12. 6395933 - Process for preparing 4-aminodiphenylamine intermediates (2002-05-28),

13. 6271420 - Preparation of quinonediimines from phenylenediamines using hydrogen peroxide and a catalyst (2001-08-07),

14. 6187937 - Preparation of N-phenyl-benzoquinoneimine from hydroxydiphenylamines (2001-02-13),

15. 6184385 - Process for the manufacture of a sulfenimide (2001-02-06),

Flexsys America L.p. is a leading global provider in the rubber and tire industries. We offer innovative solutions and high-quality products that help our customers enhance the performance of their businesses. With our advanced technologies and extensive expertise, we deliver value and efficiency to the market. Visit our website for more information and to explore our comprehensive range of offerings.

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Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

28 Patents

#21 in Akron, OH

#495 in Ohio

#11,597 in US

#22,547 in the World

Akron, OH, United States of America

Flexsys America L.p.

Forward Citations = 171

32 inventors:

Donald L Fields, Jr (8 out of 16 patents)

Jayant S Lodaya (7 out of 7 patents)

Roger Keranen Rains (6 out of 10 patents)

4. Otto W Maender (6 out of 17 patents)

5. Michael K Stern (5 out of 27 patents)

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