For the Inventor, By the Inventor

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Dallas, TX, United States of America

Trn Business Trust

USPTO Granted Patents = 81

% Expired Patents = 19.8

CIPO Patents = 1

Trademarks = 8

Forward Citations = 1,480

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66 inventors (with patents filed for the assignee):

Stephen W Smith (15 out of 28 patents)

John W Coulborn (9 out of 12 patents)

Mell R Thoman (8 out of 10 patents)

4. George S Creighton (7 out of 23 patents)

5. Sherlock K Pippins (6 out of 13 patents)

6. Allen E Norton (6 out of 6 patents)

7. Robert J Barry (5 out of 13 patents)

8. Robert J Cencer (5 out of 22 patents)

9. James R Albritton (5 out of 19 patents)

10. Alex K Hoover (5 out of 5 patents)

11. D Bruce Fetterman (4 out of 11 patents)

12. Robert J Recupido (4 out of 7 patents)

13. Maurice E Bronstad (4 out of 6 patents)

14. Ronald J Zupancich (4 out of 4 patents)

15. Charles D Womack (4 out of 4 patents)

Core Competencies:

Railcar

Temperature Control

Discharge System

Energy Absorbing

Railway Hopper Car

Railway Boxcar

Increased Capacity

Composite Structure

Hitch Control

Safety System

Excavation Equipment

Guardrail Assembly

81 patents: Sort by Forward Citations

1. 7681507 - Railcar with discharge control system (2010-03-23),

2. 7516945 - Cable anchor bracket (2009-04-14),

3. 7243908 - Cable anchor bracket (2007-07-17),

4. 7210413 - Universal boxcar (2007-05-01),

5. 7080598 - Railway hopper car with longitudinal discharge openings (2006-07-25),

6. 7059590 - Impact assembly for an energy absorbing device (2006-06-13),

7. 7051661 - Railcar with discharge control system (2006-05-30),

8. 7036249 - Tooth adapter having an elastomeric clamp assembly and method for using same (2006-05-02),

9. 7032334 - System and method for coupling excavation equipment components (2006-04-25),

10. 7004080 - Boxcar with load restraint system (2006-02-28),

11. 6962328 - Cable safety system (2005-11-08),

12. 6941875 - Temperature controlled railway car (2005-09-13),

13. 6935245 - Railway car for transporting semi-trucks (2005-08-30),

14. 6910427 - Security device and method to prevent unauthorized discharge of contents from a tank (2005-06-28),

15. 6904848 - Roof assembly and airflow management system for a temperature controlled railway car (2005-06-14),

Company Overview

Trn Business Trust, based in Dallas, TX, specializes in the design and development of advanced railway car technologies. The company focuses on innovative solutions for railcar construction, emphasizing temperature control systems, energy absorption mechanisms, and enhanced discharge systems. Their expertise extends to various railcar types, including hopper cars and boxcars, with a commitment to increasing capacity and utilizing composite structures for improved performance and efficiency in the railway industry.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

81 Patents

#24 in Dallas, TX

#246 in Texas

#4,579 in US

#9,359 in the World

Dallas, TX, United States of America

Trn Business Trust

Forward Citations = 1,480

66 inventors:

Stephen W Smith (15 out of 28 patents)

John W Coulborn (9 out of 12 patents)

Mell R Thoman (8 out of 10 patents)

4. George S Creighton (7 out of 23 patents)

5. Sherlock K Pippins (6 out of 13 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Trn Business Trust. Retrieved from https://idiyas.com/company/trn-business-trust

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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