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Strongsville, OH, United States of America

Clark-reliance Corporation

USPTO Granted Patents = 21

Trademarks = 24

Forward Citations = 198

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22 inventors (with patents filed for the assignee):

David E Brown (7 out of 7 patents)

David E Purcel (5 out of 5 patents)

Michael E Winiasz (4 out of 23 patents)

4. Mark A Colman (4 out of 4 patents)

5. Steven Robert McGuigan (3 out of 3 patents)

6. Michael J Kett (3 out of 3 patents)

7. Syed Sultan (1 out of 1 patent)

8. Dennis M Barrett (1 out of 1 patent)

9. Thomas H Lee (1 out of 72 patents)

10. Thomas W Lisy (1 out of 1 patent)

11. John A Hobing (1 out of 1 patent)

12. Robert Martin Wilber, Jr (1 out of 1 patent)

13. Robert A Custer (1 out of 1 patent)

14. Christopher W Fadden (1 out of 1 patent)

15. Kenneth H Kowalski (1 out of 1 patent)

21 patents: Sort by Forward Citations

1. 11313713 - Magnetostrictive transmitter (2022-04-26),

2. 10258916 - Filtering system including impermeable extension for filtering element (2019-04-16),

3. 9920840 - Valve with different threads for preventing rotation of and locking bonnet within valve (2018-03-20),

4. 9329069 - Liquid level system with blowdown feature (2016-05-03),

5. 7047806 - Liquid level gage and illuminator therefor (2006-05-23),

6. 6666086 - Automatic boiler level controller (2003-12-23),

7. 6575010 - Method and system for detecting and cross-checking faulty sensors in liquid level indicators and controllers (2003-06-10),

8. 5743137 - Magnetic float assembly (1998-04-28),

9. 5647656 - Illuminated fluid level indicator (1997-07-15),

10. 5645336 - Illuminated fluid level indicator (1997-07-08),

11. 5351036 - Microwave-based point liquid level monitoring system (1994-09-27),

12. 5343826 - Fluid indicator assemblies for sight flow apparatus (1994-09-06),

13. 5297429 - Sanitary sight indicator (1994-03-29),

14. 5249464 - Sight flow apparatus with cartridge (1993-10-05),

15. 5243929 - Tubular sanitary sight indicator (1993-09-14),

Clark-Reliance Corporation is a global leader in boiler level instrumentation and process separation technology. With over 130 years of experience, the company provides a wide range of products and services to industries such as power generation, oil & gas, chemical, and more. Their innovative solutions help customers optimize efficiency, safety, and environmental performance.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

21 Patents

#4 in Strongsville, OH

#641 in Ohio

#15,156 in US

#29,052 in the World

Strongsville, OH, United States of America

Clark-reliance Corporation

Forward Citations = 198

22 inventors:

David E Brown (7 out of 7 patents)

David E Purcel (5 out of 5 patents)

Michael E Winiasz (4 out of 23 patents)

4. Mark A Colman (4 out of 4 patents)

5. Steven Robert McGuigan (3 out of 3 patents)

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