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Portland, OR, United States of America

Evans Products Company

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USPTO Granted Patents = 33

Forward Citations = 432

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38 inventors (with patents filed for the assignee):

Bennett O Blout (4 out of 4 patents)

Michael R Ridenour (3 out of 3 patents)

Norbert S Wolak (2 out of 2 patents)

4. Thomas J, Wolak (2 out of 2 patents)

5. Jerry L Zabonick (2 out of 2 patents)

6. Raymond M Krokos (2 out of 2 patents)

7. Thomas G Stone (2 out of 2 patents)

8. Donald J Ehrlich (2 out of 2 patents)

9. James Phillip Young (1 out of 58 patents)

10. Peter E Johnson (1 out of 17 patents)

11. Bob G Rowland (1 out of 2 patents)

12. Edwin L Jesse (1 out of 3 patents)

13. Oliver C Fuller (1 out of 3 patents)

14. Leonidas Jaras (1 out of 1 patent)

15. Gary L Sheldon (1 out of 3 patents)

Core Competencies:

Diaphragm Grinding Mill

Automobile Shredding

Temperature Controller

Freight Bracing

Vehicle Heaters

Microporous Sheet

Pneumatic Gate

Battery Separator

Railway Components

Sliding Door Lock

Brake Beam Structure

Cooling Apparatus

33 patents: Sort by Forward Citations

1. 4646980 - Cone discharge for diaphragm discharge rotary grinding mill (1987-03-03),

2. 4558826 - Hammer for automobile shredding mills (1985-12-17),

3. 4549504 - Electronic controller for regulating temperature within an internal (1985-10-29),

4. 4455807 - Splice rail assembly (1984-06-26),

5. 4454984 - Auxiliary circulation system for vehicle heaters (1984-06-19),

6. 4372716 - Freight bracing bulkhead trolley and latching system (1983-02-08),

7. 4345862 - Modular freight bracing bulkhead assembly (1982-08-24),

8. 4342267 - Hopper discharge unit with sliding gate (1982-08-03),

9. 4290232 - Freight car door locking mechanism (1981-09-22),

10. 4281870 - Vehicle convertible double deck system (1981-08-04),

11. 4237083 - Process of manufacturing a microporous sheet material (1980-12-02),

12. 4208970 - Movable lading bracing stanchions for freight cars (1980-06-24),

13. 4200208 - Pneumatic hopper gate (1980-04-29),

14. 4176784 - Dual action control mechanism (1979-12-04),

15. 4132301 - Fluid actuatable fan clutch with internal caliper action (1979-01-02),

Company Overview

Evans Products Company, based in Portland, Oregon, specializes in the development and manufacturing of high-performance materials and components for various industries. The company focuses on innovative solutions in the fields of construction, automotive, and aerospace, emphasizing durability and efficiency in its product offerings. With a commitment to quality and technological advancement, Evans Products plays a significant role in enhancing the performance and sustainability of its clients' operations.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

33 Patents

#33 in Portland, OR

#105 in Oregon

#10,312 in US

#20,172 in the World

Portland, OR, United States of America

Evans Products Company

Forward Citations = 432

38 inventors:

Bennett O Blout (4 out of 4 patents)

Michael R Ridenour (3 out of 3 patents)

Norbert S Wolak (2 out of 2 patents)

4. Thomas J, Wolak (2 out of 2 patents)

5. Jerry L Zabonick (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Evans Products Company. Retrieved from https://idiyas.com/company/evans-products-company

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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