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For the Inventor, By the Inventor

Salina, KS, United States of America

Great Plains Manufacturing, Incorporated


USPTO Granted Patents = 127


Trademarks = 32

Forward Citations = 1,175

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76 inventors (with patents filed for the assignee):

goldMedal Jason Carlson (22 out of 22 patents)

silverMedal John M Relph (17 out of 17 patents)

bronzeMedal Gregory W Arnett (17 out of 17 patents)

4.  Jeff Welsh (16 out of 16 patents)

5.  Verne A Hubalek (13 out of 14 patents)

6.  Eric Johnson (11 out of 13 patents)

7.  Matthew Shobe (11 out of 11 patents)

8.  Brian Olander (10 out of 10 patents)

9.  Taylor Bozarth (10 out of 10 patents)

10.  Michael J Ohnsat (10 out of 10 patents)

11.  Bruce D Peterson (7 out of 7 patents)

12.  Toshihiko Takemura (7 out of 7 patents)

13.  Rodney Hake (7 out of 8 patents)

14.  Jacob R Riffel (7 out of 8 patents)

15.  Timothy J Ptacek (7 out of 7 patents)


Core Competencies:
Automatic Cab Tilting
Seed-Flow Adjustment
Vehicle Steering Assembly
Vision Sensors
Hydraulic Power Amplification
Loader Machine Interface
Autonomous Agricultural Systems
High Capacity Baler
Tillage Implements
Loader Arm Design
Attachment Assembly
Ground Openers

127 patents:

1. 12503837 - Work machine with wireless transceiver (2025-12-23),
2. 12466496 - Work machine with automatic cab tilting (2025-11-11),
3. 12464972 - Seed-flow adjustment system (2025-11-11),
4. 12409879 - Vehicle steering assembly (2025-09-09),
5. 12365401 - Controls for a work machine (2025-07-22),
6. 12342740 - Agricultural implement with vision sensors (2025-07-01),
7. 12325971 - Loader with improved arm path (2025-06-10),
8. 12305675 - Hydraulic power amplification (2025-05-20),
9. 12302797 - Locking mechanism for knotter assemblies (2025-05-20),
10. D1063966 - Loader machine electronic device with graphical user interface (2025-02-25),
11. D1061334 - Loader machine loader arm (2025-02-11),
12. 12203236 - Loader with improved arm path (2025-01-21),
13. D1055989 - Loader machine rear door (2024-12-31),
14. 12178150 - Attachment assembly for agricultural implements (2024-12-31),
15. 12173468 - Control system for compact utility loader (2024-12-24),
Great Plains Manufacturing, Incorporated is a leading agricultural equipment manufacturer based in Salina, Kansas. With over four decades of experience, Great Plains designs, produces, and sells innovative farming equipment and solutions to farmers worldwide. Their product line includes tillage equipment, planting and seeding machinery, fertilization and nutrient application tools, as well as mowers and landscape equipment. Great Plains Manufacturing is committed to improving agricultural practices through technology and continues to deliver high-quality, reliable equipment that helps farmers achieve optimal productivity and sustainability.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

127 Patents

#1 in Salina, KS

#26 in Kansas

#2,929 in US

#6,138 in the World

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Salina, KS, United States of America

Great Plains Manufacturing, Incorporated

Forward Citations = 1,175

76 inventors:

goldMedal Jason Carlson (22 out of 22 patents)

silverMedal John M Relph (17 out of 17 patents)

bronzeMedal Gregory W Arnett (17 out of 17 patents)

4.  Jeff Welsh (16 out of 16 patents)

5.  Verne A Hubalek (13 out of 14 patents)

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