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For the Inventor, By the Inventor

Marysville, KS, United States of America

Landoll Corporation


USPTO Granted Patents = 29



Trademarks = 8

Forward Citations = 371

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28 inventors (with patents filed for the assignee):

goldMedal Donald R Landoll (23 out of 24 patents)

silverMedal Kyle D Swart (5 out of 5 patents)

bronzeMedal Keith Vacha (5 out of 5 patents)

4.  Loren F Wassenberg (4 out of 5 patents)

5.  David J Kongs (4 out of 4 patents)

6.  Phillip R Landoll (3 out of 3 patents)

7.  Sterling W Gunter (3 out of 3 patents)

8.  Robert D Harlan (3 out of 3 patents)

9.  Alfred R Belknap (3 out of 3 patents)

10.  Christopher Lee Tamm (2 out of 2 patents)

11.  Mel A Beikmann (2 out of 2 patents)

12.  Shannon W Gibson (2 out of 2 patents)

13.  Jeffrey P Germann (2 out of 2 patents)

14.  Hosea M Harris (2 out of 2 patents)

15.  Jeffrey L Keating (2 out of 2 patents)


29 patents:

1. 8960321 - Agricultural implements with float-restricted hinged wings (2015-02-24),
2. 8863882 - Hydraulic steering system for forklift trucks (2014-10-21),
3. 8590632 - Single pass ground driven tiller and seeder apparatus (2013-11-26),
4. 8434657 - Gantry-based welding system and method (2013-05-07),
5. 8292557 - Vehicle transporter (2012-10-23),
6. 8276704 - Hydraulic steering system for forklift trucks (2012-10-02),
7. 8210418 - Multi-station, gantry-based automated welding system (2012-07-03),
8. 8118110 - Agricultural implements with hinged and floating wings (2012-02-21),
9. 7997218 - Soil strip assembly for seed drill row unit (2011-08-16),
10. 7992650 - Air spring down-pressure system for implement (2011-08-09),
11. 6655904 - Method of off-loading a container from a tilt bed trailer (2003-12-02),
12. 6568892 - Container lockdown device (2003-05-27),
13. 6406231 - Container lockdown device (2002-06-18),
14. 6378887 - Gooseneck lift mechanism (2002-04-30),
15. 6224082 - Cam action detachable gooseneck trailer (2001-05-01),
Landoll Corporation is a leading manufacturer of equipment for transportation, material handling, and agricultural industries. With over 55 years of experience, Landoll offers a wide range of products including trailers, forklifts, and tillage equipment. Their dedication to quality, innovation, and customer satisfaction has made them a trusted name in the industry.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 16 2025

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29 Patents

#1 in Marysville, KS

#101 in Kansas

#11,224 in US

#21,857 in the World

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Marysville, KS, United States of America

Landoll Corporation

Forward Citations = 371

28 inventors:

goldMedal Donald R Landoll (23 out of 24 patents)

silverMedal Kyle D Swart (5 out of 5 patents)

bronzeMedal Keith Vacha (5 out of 5 patents)

4.  Loren F Wassenberg (4 out of 5 patents)

5.  David J Kongs (4 out of 4 patents)

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