For the Inventor, By the Inventor

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Muskegon, MI, United States of America

Sealed Power Corporation

USPTO Granted Patents = 32

Forward Citations = 432

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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.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

32 Patents

#3 in Muskegon, MI

#396 in Michigan

#10,583 in US

#20,645 in the World

Muskegon, MI, United States of America

Sealed Power Corporation

Forward Citations = 432

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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