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For the Inventor, By the Inventor

Sioux City, IA, United States of America

Wilson Trailer Company

Calculating rank
USPTO Granted Patents = 13

Trademarks = 2

Forward Citations = 119

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10 inventors (with patents filed for the assignee):

goldMedal Mack A Lewis (6 out of 7 patents)

silverMedal Brett Plazek (3 out of 3 patents)

bronzeMedal Matthew M Putze (2 out of 2 patents)

4.  Michael L Chan (2 out of 79 patents)

5.  Mike R Spencer (2 out of 2 patents)

6.  William P Pelchat (1 out of 1 patent)

7.  Don A Greive (1 out of 1 patent)

8.  Gerald E Joynt (1 out of 1 patent)

9.  David Peterson (1 out of 1 patent)

10.  Aaron Larson (1 out of 1 patent)


13 patents:

1. 12144312 - Rack and pinion roller gate system for a livestock transportation vehicle, and method of operation thereof (2024-11-19),
2. 10889429 - System and method for converting a commodity trailer with gravity discharge slide gates to be compatible with a pneumatic outlet gate and an interchangeable pneumatic gate therefor (2021-01-12),
3. 8393838 - Interconnecting trailer side rail and tie down plate (2013-03-12),
4. 6085948 - Trap closure device for trailer hoppers (2000-07-11),
5. 6058885 - Lock and release mechanism for vertical adjustable deck in livestock (2000-05-09),
6. 5152599 - Contact strip lighting system (1992-10-06),
7. 4470231 - Removable closure panels for livestock trailer, body or container (1984-09-11),
8. 4437699 - Monocoque trailer or body side construction (1984-03-20),
9. 4397498 - Collapsible outrigger side extension for load bed (1983-08-09),
10. 4305694 - Hydraulic tailgate extension, bumper and lock (1981-12-15),
11. 4293158 - Gate with ramp device for livestock trailer with lift deck (1981-10-06),
12. 4277096 - Telescoping reach rod for gate and ramp device with lift deck (1981-07-07),
13. 4153289 - Ramp leg guard (1979-05-08),
Company Overview
Wilson Trailer Company, headquartered in Sioux City, Iowa, specializes in the design and manufacturing of high-quality trailers for various industries, including agriculture, construction, and transportation. The company is known for its innovative approach to trailer engineering, focusing on durability and performance to meet the evolving needs of its customers. With a commitment to quality craftsmanship, Wilson Trailer continues to be a significant player in the trailer manufacturing sector, serving clients across North America.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

13 Patents

#1 in Sioux City, IA

#144 in Iowa

#23,854 in US

#45,081 in the World

Sioux City, IA (US)
Sioux City, IA, United States of America

Wilson Trailer Company

Forward Citations = 119

10 inventors:

goldMedal Mack A Lewis (6 out of 7 patents)

silverMedal Brett Plazek (3 out of 3 patents)

bronzeMedal Matthew M Putze (2 out of 2 patents)

4.  Michael L Chan (2 out of 79 patents)

5.  Mike R Spencer (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Wilson Trailer Company. Retrieved from https://idiyas.com/company/wilson-trailer-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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