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For the Inventor, By the Inventor

Chicago Heights, IL, United States of America

Thrall Car Manufacturing Company


USPTO Granted Patents = 64

Trademarks = 1

Forward Citations = 1,237

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43 inventors (with patents filed for the assignee):

goldMedal Richard E Jamrozy (8 out of 10 patents)

silverMedal Shaun Richmond (7 out of 8 patents)

bronzeMedal James E Black, Jr (6 out of 7 patents)

4.  James C Robertson (6 out of 7 patents)

5.  William R Baker (6 out of 6 patents)

6.  Keith J Hallam (6 out of 6 patents)

7.  Ralph Hartman Schorr (5 out of 8 patents)

8.  Michael J Rench (5 out of 9 patents)

9.  James P Klag (5 out of 8 patents)

10.  Donald J Blunden (5 out of 6 patents)

11.  Kenneth H Smith (5 out of 5 patents)

12.  Richard D Curtis (4 out of 6 patents)

13.  John A Ritter (4 out of 5 patents)

14.  Joseph W Lam (4 out of 4 patents)

15.  James J Schuller (4 out of 11 patents)


Core Competencies:
Railroad Car Design
Auto Rack Railway Car
Hopper Car Mechanism
Container Transport Systems
Articulated Railway Cars
Brake System Innovations
Lightweight Railcars
Vented Hatch Coaming
Side Panel Assembly
Pivot Plate Assembly
Vehicle Transport Solutions
Railcar Support Structures

64 patents:

1. 6749380 - Mechanism to facilitate raising and lowering hinged end section of deck (2004-06-15),
2. 6339994 - Railcar with trackless support for radial end door (2002-01-22),
3. 6289822 - Auto rack railway car (2001-09-18),
4. 6273004 - Motor-vehicle carrying railcar with improved sidewall structure (2001-08-14),
5. 6244801 - Motor-vehicle carrying railcar with offset H-frame (2001-06-12),
6. 6216603 - Vented hatch coaming (2001-04-17),
7. 6053113 - Vented hatch coaming (2000-04-25),
8. 6024023 - Hopper car gate (2000-02-15),
9. 5829360 - Auto rack door lock (1998-11-03),
10. 5787816 - Auto rack side panel assembly (1998-08-04),
11. 5782187 - Pivot plate assembly for articulated railway cars (1998-07-21),
12. 5765486 - Auto rack railway car (1998-06-16),
13. 5762001 - Door edge protector (1998-06-09),
14. 5657698 - Pivot plate assembly for articulated railway cars (1997-08-19),
15. 5575221 - Truck mounted brake system (1996-11-19),
Thrall Car Manufacturing Company specializes in designing and producing freight railcars for the transportation industry. With over 100 years of experience, Thrall Car Manufacturing Company has become a trusted provider of high-quality railcar solutions. The company offers a wide range of products, including boxcars, gondolas, flatcars, and intermodal equipment. Thrall Car Manufacturing Company is committed to innovation, reliability, and customer satisfaction, constantly striving to meet the evolving needs of the railroad market.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

64 Patents

#1 in Chicago Heights, IL

#310 in Illinois

#5,441 in US

#11,009 in the World

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Chicago Heights, IL, United States of America

Thrall Car Manufacturing Company

Forward Citations = 1,237

43 inventors:

goldMedal Richard E Jamrozy (8 out of 10 patents)

silverMedal Shaun Richmond (7 out of 8 patents)

bronzeMedal James E Black, Jr (6 out of 7 patents)

4.  James C Robertson (6 out of 7 patents)

5.  William R Baker (6 out of 6 patents)

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