For the Inventor, By the Inventor

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Portland, OR, United States of America

Gunderson, Inc.

USPTO Granted Patents = 88

% Expired Patents = 2.3

EPO Patents = 3

Trademarks = 8

Forward Citations = 820

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64 inventors (with patents filed for the assignee):

Gregory J Saxton (37 out of 37 patents)

Peter L Jones (11 out of 11 patents)

Jon B Zaerr (10 out of 10 patents)

4. John N Niosi (9 out of 9 patents)

5. Michael Gillis (7 out of 7 patents)

6. Charles C Hill (7 out of 24 patents)

7. Gary S Kaleta (6 out of 8 patents)

8. Bradley J Thomas (5 out of 5 patents)

9. James Jarvis (5 out of 5 patents)

10. Daniel J Schuller (5 out of 5 patents)

11. Kris Heitmeyer (4 out of 4 patents)

12. Marvin Gordon Rains (4 out of 4 patents)

13. Gareth R Thomas (4 out of 5 patents)

14. Caglar Ozerdim (3 out of 9 patents)

15. James D Pileggi (3 out of 16 patents)

Core Competencies:

Gondola Car

Hopper Car

Railcar Design

Tank Car

Container Well

Freight Car

Insulated Boxcar

Pneumatic Brake

Multi-Unit Car

Lightweight Structure

Railway Boxcar

Discharge Gate

88 patents: Sort by Forward Citations

1. 12736149 - Railway tank car having a discharge valve assembly and a dis-engageable valve handle assembly coupled to the discharge valve assembly (2026-09-15),

2. 12662172 - Large plate tilt railroad car (2026-06-23),

3. 12539893 - Gondola railroad car (2026-02-03),

4. 12509129 - Large plate tilt railroad car (2025-12-30),

5. 12434744 - Door assemblies for insulated boxcars and refrigerated boxcars (2025-10-07),

6. 12409872 - Coupler cross keys (2025-09-09),

7. 12286141 - Hopper railroad car having top hatch cover assembly (2025-04-29),

8. 12286140 - Railcar for transport of steel coils with removable bi-level roof (2025-04-29),

9. 12202529 - Cover assemblies for railroad cars (2025-01-21),

10. 12168466 - Open top gondola railcars (2024-12-17),

11. 12122431 - Asymmetric hopper cars (2024-10-22),

12. 12077195 - Manway assemblies for railroad cars (2024-09-03),

13. 12024211 - Discharge gate arrangements for railroad hopper cars (2024-07-02),

14. 12005937 - Configurable railroad car (2024-06-11),

15. 11878724 - Autorack cars (2024-01-23),

Gunderson, Inc., based in Portland, Oregon, specializes in the design and manufacture of railroad freight cars. The company is recognized for its innovative solutions in various railcar types, including gondola cars, hopper cars, tank cars, and insulated boxcars. With a focus on enhancing freight transportation efficiency, Gunderson also develops advanced railcar technologies such as pneumatic brakes and container wells. The organization plays a significant role in the rail industry, contributing to the evolution of freight logistics and transportation infrastructure.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

88 Patents

#13 in Portland, OR

#51 in Oregon

#4,232 in US

#8,668 in the World

Portland, OR, United States of America

Gunderson, Inc.

Forward Citations = 820

64 inventors:

Gregory J Saxton (37 out of 37 patents)

Peter L Jones (11 out of 11 patents)

Jon B Zaerr (10 out of 10 patents)

4. John N Niosi (9 out of 9 patents)

5. Michael Gillis (7 out of 7 patents)

Please report any incorrect information to [email protected]

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