For the Inventor, By the Inventor

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Muskegon, MI, United States of America

Sealed Power Corporation

USPTO Granted Patents = 32

Trademarks = 3

Forward Citations = 427

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23 inventors (with patents filed for the assignee):

A David Joseph (9 out of 9 patents)

David L Anderson (6 out of 9 patents)

Frank G Warrick (5 out of 5 patents)

4. John L Hendrixon (4 out of 7 patents)

5. Charles J Mullally (3 out of 5 patents)

6. Lee H Saylor (3 out of 3 patents)

7. Robert F Hitchcock (2 out of 3 patents)

8. Robert R Rositch (2 out of 2 patents)

9. Robert M Tamburrino (2 out of 2 patents)

10. Richard D Cornell (1 out of 7 patents)

11. David J Domanchuk (1 out of 6 patents)

12. Jerome J Bush (1 out of 2 patents)

13. Allen F Pearson (1 out of 5 patents)

14. James W Humphreys (1 out of 1 patent)

15. Lewis M Davis (1 out of 1 patent)

32 patents: Sort by Forward Citations

1. 4863142 - Electromagnetic solenoid valve with variable force motor (1989-09-05),

2. 4753263 - Electrohydraulic regulating valves (1988-06-28),

3. 4674536 - Electrohydraulic valves for use in a system (1987-06-23),

4. 4617968 - Electrohydraulic control of a spool valve for energizing a heavy duty (1986-10-21),

5. 4595035 - Solenoid valve (1986-06-17),

6. 4570904 - Solenoid valve (1986-02-18),

7. 4556085 - Solenoid valve (1985-12-03),

8. 4553421 - Ring compressor tool (1985-11-19),

9. 4509340 - Accumulator-dehydrator assembly for an air conditioning system (1985-04-09),

10. 4472861 - Mounting arrangement for plastic workpieces (1984-09-25),

11. 4450081 - Transmission fluid filter and method of manufacture (1984-05-22),

12. 4417383 - Method of assembling pipe joint (1983-11-29),

13. 4402827 - Transmission fluid filter (1983-09-06),

14. 4361120 - Roller tappet and method of making same (1982-11-30),

15. 4351550 - Metal-to-plastic pipe joint (1982-09-28),

Sealed Power Corporation is a leading manufacturer of mechanical sealing solutions for various industries. With over 50 years of experience, our company provides reliable and innovative sealing products that meet the highest industry standards. We offer a wide range of sealing solutions, including gaskets, o-rings, seals, and packing, designed to withstand extreme conditions and ensure optimal performance. Trust Sealed Power Corporation for all your sealing needs.

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

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USPTO Data Jan 1 1976 - Dec 16 2025

32 Patents

#3 in Muskegon, MI

#384 in Michigan

#10,235 in US

#20,069 in the World

Muskegon, MI, United States of America

Sealed Power Corporation

Forward Citations = 427

23 inventors:

A David Joseph (9 out of 9 patents)

David L Anderson (6 out of 9 patents)

Frank G Warrick (5 out of 5 patents)

4. John L Hendrixon (4 out of 7 patents)

5. Charles J Mullally (3 out of 5 patents)

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