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For the Inventor, By the Inventor

Sioux Falls, SD, United States of America

Sioux Steel Company


USPTO Granted Patents = 30


Trademarks = 46

Forward Citations = 278

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38 inventors (with patents filed for the assignee):

goldMedal Leroy B Stumpe (9 out of 12 patents)

silverMedal Brian Schuelke (7 out of 7 patents)

bronzeMedal William A Witt (5 out of 5 patents)

4.  Brent J Bloemendaal (4 out of 18 patents)

5.  Eric Schuld (4 out of 4 patents)

6.  Andrew Grass (3 out of 3 patents)

7.  Elliott Strain (3 out of 3 patents)

8.  Chris Lee Nelson (3 out of 42 patents)

9.  Scott L Schmidt (3 out of 3 patents)

10.  Donald J Siglin (3 out of 3 patents)

11.  Robert E Hardy (3 out of 3 patents)

12.  Matt Palmlund (2 out of 2 patents)

13.  Gary D Seeba (2 out of 2 patents)

14.  John Steever (2 out of 2 patents)

15.  Terry A Adams (2 out of 2 patents)


30 patents:

1. 12180019 - Bin sweep apparatus effective in two directions of movement (2024-12-31),
2. 11623829 - Bin sweep system with contoured paddles (2023-04-11),
3. 11618639 - Storage bin sweep system with enhanced peripheral sweep capability (2023-04-04),
4. 11454444 - Storage bin ventilation system and apparatus (2022-09-27),
5. 11299358 - Storage bin sweep system with enhanced peripheral sweep capability (2022-04-12),
6. 11267664 - Bin sweep system with drive apparatus having enhanced slippage capability (2022-03-08),
7. 11104528 - Bin sweep system with contoured paddles (2021-08-31),
8. 10703588 - Bin sweep system with particle agglomeration breakup capability (2020-07-07),
9. 10676294 - Modular storage bin sweep system (2020-06-09),
10. 10442641 - Bin sweep system (2019-10-15),
11. 10220968 - Grain storage bag loader apparatus (2019-03-05),
12. 10220420 - Bin sweep power transmission system (2019-03-05),
13. 10011442 - Bin sweep support (2018-07-03),
14. 9864344 - System and method for multiple sweep proximity sensing and control (2018-01-09),
15. 9815639 - Modular storage bin sweep system (2017-11-14),
Sioux Steel Company is a leading manufacturer of agricultural and industrial equipment, including grain systems, livestock equipment, and industrial products. With a history dating back to 1918, Sioux Steel is recognized for its high-quality products and innovative solutions in the agricultural and industrial sectors.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 2 2025

30 Patents

#7 in Sioux Falls, SD

#11 in South Dakota

#10,854 in US

#21,168 in the World

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Sioux Falls, SD, United States of America

Sioux Steel Company

Forward Citations = 278

38 inventors:

goldMedal Leroy B Stumpe (9 out of 12 patents)

silverMedal Brian Schuelke (7 out of 7 patents)

bronzeMedal William A Witt (5 out of 5 patents)

4.  Brent J Bloemendaal (4 out of 18 patents)

5.  Eric Schuld (4 out of 4 patents)

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