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)

Core Competencies:

Electromagnetic Solenoid Valve

Electrohydraulic Regulating Valves

Spool Valve Control

Transmission Fluid Filter

Piston Ring

Oil Pump Inlet Screen

Roller Tappet

Pipe Joint Assembly

Accumulator-Dehydrator Assembly

Spacer-Expander

Heavy Duty Valves

Hydraulic Lash Adjuster

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),

Company Overview

Sealed Power Corporation, based in Muskegon, MI, specializes in the development and manufacturing of high-performance engine components. The company focuses on providing innovative solutions for the automotive and industrial sectors, emphasizing durability and efficiency in its product offerings. With a commitment to advanced engineering and technology, Sealed Power plays a significant role in enhancing engine performance and reliability, catering to both original equipment manufacturers and aftermarket needs.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

32 Patents

#3 in Muskegon, MI

#397 in Michigan

#10,607 in US

#20,697 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sealed Power Corporation. Retrieved from https://idiyas.com/company/sealed-power

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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