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Dayton, OH, United States of America

The Duriron Company, Inc.

USPTO Granted Patents = 26

Forward Citations = 419

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34 inventors (with patents filed for the assignee):

Richard L Helferich (8 out of 11 patents)

Robert C Schenck (4 out of 6 patents)

Robert Joseph Brown (2 out of 4 patents)

4. John W McKinney, Jr (2 out of 2 patents)

5. Jack L Wissman (2 out of 2 patents)

6. William B Shook (2 out of 19 patents)

7. Dennis M Rusnak (1 out of 2 patents)

8. Royce Chaffin (1 out of 2 patents)

9. David Lamar Bowers (1 out of 2 patents)

10. Donnie Ray Hammock (1 out of 2 patents)

11. Gerald Patrick McDermott (1 out of 3 patents)

12. Jack Joseph Powell (1 out of 3 patents)

13. Gary W McKale (1 out of 1 patent)

14. Anthony F McGowan (1 out of 1 patent)

15. Douglas A Bogart (1 out of 1 patent)

26 patents: Sort by Forward Citations

1. 5900083 - Heat treatment of cast alpha/beta metals and metal alloys and cast (1999-05-04),

2. 5807086 - Seal chamber splash guard (1998-09-15),

3. 5746417 - Adjustable ball valve (1998-05-05),

4. 5336996 - Hall effect monitoring of wear of bearing supporting a rotor within a (1994-08-09),

5. 4968423 - Filter leaf (1990-11-06),

6. 4963515 - Lightweight hydrogel-bound aggregate shapes and process for producing (1990-10-16),

7. 4923487 - Cross flow diesel particulate trap (1990-05-08),

8. 4878947 - Method for manufacture of porous refractory articles (1989-11-07),

9. 4871495 - Process for producing porous ceramic filter for filtering of (1989-10-03),

10. 4846906 - Methods for the manufacture of porous ceramic shapes containing (1989-07-11),

11. 4814300 - Porous ceramic shapes, compositions for the preparation thereof, and (1989-03-21),

12. 4812424 - Kiln furniture for the firing of ceramic articles (1989-03-14),

13. 4774984 - Low-noise plug valve (1988-10-04),

14. 4738713 - Method for induction melting reactive metals and alloys (1988-04-19),

15. 4722664 - Lined corrosion resistant pump (1988-02-02),

The Duriron Company, Inc. specializes in manufacturing and supplying engineering solutions for fluid handling systems. With over 50 years of experience, we offer a wide range of products including pumps, valves, and filtration systems for various industries. Our commitment to quality and innovation has helped us become a trusted name in the market. Visit our website to learn more about our products and services.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

26 Patents

#22 in Dayton, OH

#531 in Ohio

#12,431 in US

#24,067 in the World

Dayton, OH, United States of America

The Duriron Company, Inc.

Forward Citations = 419

34 inventors:

Richard L Helferich (8 out of 11 patents)

Robert C Schenck (4 out of 6 patents)

Robert Joseph Brown (2 out of 4 patents)

4. John W McKinney, Jr (2 out of 2 patents)

5. Jack L Wissman (2 out of 2 patents)

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