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Cleveland, OH, United States of America

Harshaw/filtrol Partnership

USPTO Granted Patents = 22

Trademarks = 5

Forward Citations = 226

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32 inventors (with patents filed for the assignee):

Bradley K Utts (4 out of 4 patents)

Julius Scherzer (3 out of 14 patents)

Eugene Nebesh (2 out of 7 patents)

4. Carl F Swinehart (2 out of 15 patents)

5. Robert L Chiang (2 out of 6 patents)

6. Oley D Wimer (2 out of 3 patents)

7. Erwin F Shrader (2 out of 2 patents)

8. William Bruml (1 out of 4 patents)

9. Michael F Brady (1 out of 37 patents)

10. Steven L McMahon (1 out of 7 patents)

11. Robert A Plundo (1 out of 7 patents)

12. Raymond J Grodek (1 out of 2 patents)

13. Donald G Kelly (1 out of 2 patents)

14. Kenneth E Wagner (1 out of 8 patents)

15. Riad A Tawil (1 out of 7 patents)

22 patents: Sort by Forward Citations

1. 5004711 - Process of producing colloidal zirconia sols and powders using an ion (1991-04-02),

2. 4900711 - Hydrotreating catalyst (1990-02-13),

3. 4772792 - Pulser stabilized radiation detector (1988-09-20),

4. 4727253 - TLD card reader (1988-02-23),

5. 4699081 - Means for detecting and adjusting metal salt concentration in an (1987-10-13),

6. D291286 - Automated thermoluminescence dosimetry system (1987-08-11),

7. 4677300 - Radiation detection and acquisition system (1987-06-30),

8. 4676817 - Method and apparatus for forming a hermetic seal between glass and metal (1987-06-30),

9. 4666879 - Extruded copper chromite-alumina hydrogenation catalyst (1987-05-19),

10. 4658141 - Inorganic scintillator crystal having a highly reflective surface (1987-04-14),

11. 4624710 - Pigment consisting of a mixture of chromium oxide and iron oxide useful (1986-11-25),

12. 4586785 - Sodium iodide, light pipe (1986-05-06),

13. 4533489 - Formable light reflective compositions (1985-08-06),

14. 4522865 - Hot press-forging of an optical body with dynamic constraint by crystal (1985-06-11),

15. 4501988 - Ethylene quenched multi-cathode Geiger-Mueller tube with (1985-02-26),

Harshaw/Filtrol Partnership is a leading provider of high-quality filters and filtration systems for a wide range of industries, including automotive, aerospace, and oil and gas. With over 50 years of experience, we offer innovative solutions to meet the unique needs of our customers. Our products are known for their durability, reliability, and efficiency, helping businesses improve their operations and reduce downtime. 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 30 2025

22 Patents

#89 in Cleveland, OH

#619 in Ohio

#14,533 in US

#27,905 in the World

Cleveland, OH, United States of America

Harshaw/filtrol Partnership

Forward Citations = 226

32 inventors:

Bradley K Utts (4 out of 4 patents)

Julius Scherzer (3 out of 14 patents)

Eugene Nebesh (2 out of 7 patents)

4. Carl F Swinehart (2 out of 15 patents)

5. Robert L Chiang (2 out of 6 patents)

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