For the Inventor, By the Inventor

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Wichita, KS, United States of America

Harper Trucks, Inc.

USPTO Granted Patents = 17

Trademarks = 1

Forward Citations = 173

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7 inventors (with patents filed for the assignee):

José Angel Caceres Mendoza (6 out of 6 patents)

John J Stallbaumer (6 out of 7 patents)

Robert D Rahn (2 out of 2 patents)

4. Gary L Dunkle (2 out of 2 patents)

5. George Barton (1 out of 24 patents)

6. Kenneth E Rousseau (1 out of 4 patents)

7. Jose' Angel Caceres Mendoza (1 out of 1 patent)

17 patents: Sort by Forward Citations

1. 12673709 - Retractable and extendable hand truck base plate assembly with a securing and releasing mechanism (2026-07-07),

2. 12240517 - Two position hand truck (2025-03-04),

3. 12221148 - Four position hand truck (2025-02-11),

4. 11560168 - Four position hand truck (2023-01-24),

5. 11472461 - Two position hand truck (2022-10-18),

6. 10864933 - Four position hand truck (2020-12-15),

7. 10703397 - Hand truck with folding toe plate (2020-07-07),

8. 6758482 - Multipurpose storage and transport cart (2004-07-06),

9. 6481727 - Hand truck toe plate and method of manufacture (2002-11-19),

10. 6419434 - Adjustable length cargo brace (2002-07-16),

11. 6308967 - Dual hand truck (2001-10-30),

12. D395105 - Hand truck (1998-06-09),

13. 5749588 - Composite hand truck (1998-05-12),

14. D384467 - Hand truck side frame (1997-09-30),

15. D354601 - Foldable hand truck assembly (1995-01-17),

Harper Trucks, Inc. is a leading manufacturer of hand trucks, dollies, and other material handling equipment. With over 70 years of experience, Harper Trucks is known for its high-quality products designed for durability and long-lasting performance. The company offers a wide range of products to meet the needs of various industries and applications, from industrial to commercial to residential use. Visit the website for more information on Harper Trucks' products and services.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

17 Patents

#17 in Wichita, KS

#125 in Kansas

#18,865 in US

#35,857 in the World

Wichita, KS, United States of America

Harper Trucks, Inc.

Forward Citations = 173

7 inventors:

José Angel Caceres Mendoza (6 out of 6 patents)

John J Stallbaumer (6 out of 7 patents)

Robert D Rahn (2 out of 2 patents)

4. Gary L Dunkle (2 out of 2 patents)

5. George Barton (1 out of 24 patents)

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