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For the Inventor, By the Inventor

Portland, OR, United States of America

Gunderson, Inc.

Calculating rank
USPTO Granted Patents = 89

% Expired Patents = 2.2


Trademarks = 8

Forward Citations = 820

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65 inventors (with patents filed for the assignee):

goldMedal Gregory J Saxton (37 out of 37 patents)

silverMedal Peter L Jones (12 out of 12 patents)

bronzeMedal 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.  James A Warwick (4 out of 4 patents)

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

15.  Caglar Ozerdim (3 out of 9 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

89 patents:

1. 12767189 - Hopper railroad car having top hatch cover assembly (2026-10-20),
2. 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),
3. 12662172 - Large plate tilt railroad car (2026-06-23),
4. 12539893 - Gondola railroad car (2026-02-03),
5. 12509129 - Large plate tilt railroad car (2025-12-30),
6. 12434744 - Door assemblies for insulated boxcars and refrigerated boxcars (2025-10-07),
7. 12409872 - Coupler cross keys (2025-09-09),
8. 12286141 - Hopper railroad car having top hatch cover assembly (2025-04-29),
9. 12286140 - Railcar for transport of steel coils with removable bi-level roof (2025-04-29),
10. 12202529 - Cover assemblies for railroad cars (2025-01-21),
11. 12168466 - Open top gondola railcars (2024-12-17),
12. 12122431 - Asymmetric hopper cars (2024-10-22),
13. 12077195 - Manway assemblies for railroad cars (2024-09-03),
14. 12024211 - Discharge gate arrangements for railroad hopper cars (2024-07-02),
15. 12005937 - Configurable railroad car (2024-06-11),
Company Overview
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 synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

89 Patents

#13 in Portland, OR

#50 in Oregon

#4,196 in US

#8,620 in the World

Portland, OR (US)
Portland, OR, United States of America

Gunderson, Inc.

Forward Citations = 820

65 inventors:

goldMedal Gregory J Saxton (37 out of 37 patents)

silverMedal Peter L Jones (12 out of 12 patents)

bronzeMedal 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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Gunderson, Inc.. Retrieved from https://idiyas.com/company/gunderson

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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