CIPO Patents = 7

Trademarks = 28

Forward Citations = 906

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58 inventors (with patents filed for the assignee):

David N Bloxdorf (14 out of 15 patents)

Chad Thomas Barker (11 out of 11 patents)

James R Doornek (9 out of 9 patents)

4. Steven Lohry Klug (8 out of 9 patents)

5. Matthew Terran Kaminecki (7 out of 7 patents)

6. Christopher Aaron Horn (7 out of 7 patents)

7. Gary E Watson (6 out of 7 patents)

8. Matthew Thoma Curran (5 out of 5 patents)

9. Edward A Simi (5 out of 5 patents)

10. Christopher A Dominguez (4 out of 4 patents)

11. Paul Yagiela (4 out of 5 patents)

12. Andre Valmont LeBlond (4 out of 5 patents)

13. James Calvin Pieper (4 out of 5 patents)

14. Tyler Barron Jones (4 out of 4 patents)

15. Mark Lawrence Stultz (3 out of 4 patents)

Core Competencies:

Snow Plow Assembly

Spreader Device

Brine Machine

Material Mixing System

Hydraulic Control Systems

Vehicle Mounted Accessory

Adjustable Wing Plow

Automatic Headlamp Switching

52 patents: Sort by Forward Citations

1. 12281453 - Snow plow assembly (2025-04-21),

2. 12188190 - Spreader with shaftless auger (2025-01-07),

3. 11731088 - Brine machine and method (2023-08-22),

4. 11680379 - Spreader with shaftless auger (2023-06-20),

5. 11555282 - Snow plow and mount assembly (2023-01-17),

6. 11535986 - Spreader (2022-12-27),

7. 11499280 - Snow plow and mount assembly (2022-11-15),

8. 11427978 - Snow plow and mount assembly (2022-08-30),

9. 11332899 - Snow plow and mount assembly (2022-05-17),

10. 10960363 - Brine machine and method (2021-03-30),

11. 10900183 - Snow plow and mount assembly (2021-01-26),

12. D904654 - Snow plow headlamp (2020-12-08),

13. 10858559 - Material mixing system (2020-12-08),

14. 10793056 - Snow plow headlamp (2020-10-06),

15. D880027 - Snow plow headlamp (2020-03-31),

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USPTO Data Jan 1 1976 - Dec 2 2025

52 Patents

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#6,531 in US

#13,130 in the World

US

Douglas Dynamics LLC