For the Inventor, By the Inventor

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Pinconning, MI, United States of America

Magline, Inc.

USPTO Granted Patents = 57

% Expired Patents = 21.1

Trademarks = 12

Forward Citations = 875

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52 inventors (with patents filed for the assignee):

Carl N Mortenson (15 out of 15 patents)

Bruce L Hailston (10 out of 10 patents)

Joseph D Krawczyk (10 out of 12 patents)

4. Jeffry R Frahm (4 out of 6 patents)

5. John C Belotti (3 out of 3 patents)

6. Andrew P Richard (3 out of 6 patents)

7. Matthew A Royalty (3 out of 3 patents)

8. Jerry J McQuarter, Jr (3 out of 3 patents)

9. William A Putman (3 out of 6 patents)

10. Stuart J Shellenbarger (2 out of 2 patents)

11. Chad D Winters (2 out of 2 patents)

12. Christopher J Guoan (2 out of 2 patents)

13. Stewart A Burton (2 out of 4 patents)

14. Daniel C Munn (2 out of 3 patents)

15. James S Hooper (2 out of 2 patents)

Core Competencies:

Hydraulic Brake

Lifting Hand Truck

Pallet Truck Adapter

Transport Cart System

Portable Ramp

Cargo Cart

Folding Hand Truck

Luggage Handling

Detachable Carrier

Stair Climber

Utility Cart Assembly

Brake Application System

57 patents: Sort by Forward Citations

1. 12565252 - Stair navigator with hydraulic brake (2026-03-03),

2. 12091072 - Powered lifting hand truck apparatus, system, and method (2024-09-17),

3. 9969411 - Hand truck (2018-05-15),

4. 9458000 - Pallet truck adapter (2016-10-04),

5. 9457999 - Collapsible pallet picking adapter (2016-10-04),

6. 9302689 - Hand truck (2016-04-05),

7. 8894076 - Cart with movable platform (2014-11-25),

8. 8282111 - Cart with movable platform (2012-10-09),

9. 8042829 - Cart for loads (2011-10-25),

10. D593722 - Structural member for a hand truck or cart (2009-06-02),

11. D593273 - Structural member for a hand truck or cart (2009-05-26),

12. D593272 - Structural member for a hand truck or cart (2009-05-26),

13. 7506879 - Transport cart system incorporating a portable floor surface for unloading palleted containers from a vehicle and method of use (2009-03-24),

14. 7422221 - Transport cart system and method of its manufacture and operation (2008-09-09),

15. 7310842 - Portable ramp assembly and method of construction (2007-12-25),

Magline, Inc., based in Pinconning, Michigan, specializes in innovative hand truck technology designed to enhance material handling efficiency. The company focuses on developing a range of products including hydraulic brake systems, lifting hand trucks, and transport cart systems. Their offerings also encompass portable ramps, cargo carts, and folding hand trucks, catering to various industries that require reliable and effective transportation solutions. Magline is committed to improving logistics and operational workflows through its advanced engineering and design capabilities.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

57 Patents

#1 in Pinconning, MI

#247 in Michigan

#6,238 in US

#12,542 in the World

Pinconning, MI, United States of America

Magline, Inc.

Forward Citations = 875

52 inventors:

Carl N Mortenson (15 out of 15 patents)

Bruce L Hailston (10 out of 10 patents)

Joseph D Krawczyk (10 out of 12 patents)

4. Jeffry R Frahm (4 out of 6 patents)

5. John C Belotti (3 out of 3 patents)

Please report any incorrect information to [email protected]

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