For the Inventor, By the Inventor

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Chicago, IL, United States of America

General American Transportation Corporation

USPTO Granted Patents = 25

Trademarks = 2

Forward Citations = 265

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21 inventors (with patents filed for the assignee):

Erling Mowatt-Larssen (11 out of 13 patents)

Edward L Davis (4 out of 4 patents)

Doug Hurst (3 out of 3 patents)

4. Albert E Price (2 out of 3 patents)

5. Edmund R Aller (2 out of 2 patents)

6. Philip A Saigh (2 out of 4 patents)

7. Albert J Glueckert (2 out of 3 patents)

8. Thomas S Lapikas (2 out of 2 patents)

9. C K Krishnakumar (1 out of 4 patents)

10. Richard W Arndt (1 out of 1 patent)

11. Pranas Budininkas (1 out of 2 patents)

12. Joseph Caldwell, Jr (1 out of 1 patent)

13. Milton W Heisterberg (1 out of 5 patents)

14. Charles T Graves (1 out of 1 patent)

15. John E Everett, Jr (1 out of 1 patent)

Core Competencies:

Railcar

Tank Car

Heating System

Safety Device

Intermodal Container

Purge Device

Hopper Unloading

Vapor Vent

Macerator-Sterilizer

Baffle

Lifting Structure

Door Latch Control

25 patents: Sort by Forward Citations

1. 5168717 - CO.sub.2 cooled railcar (1992-12-08),

2. 4711274 - External purge system for a tank train (1987-12-08),

3. 4664307 - Spirally welded tank cars (1987-05-12),

4. 4664038 - Door latch control apparatus for hopper vehicle (1987-05-12),

5. 4586547 - Ball valve purge device for tank cars (1986-05-06),

6. 4557199 - Lifting structure for railway tank car (1985-12-10),

7. 4515189 - Molten sulfur tank car assembly (1985-05-07),

8. 4513795 - Tank with selectively variable automatic outage (1985-04-30),

9. 4493266 - Railway hopper car and center sill construction therefor (1985-01-15),

10. 4440528 - Container for pulverulent material (1984-04-03),

11. 4414462 - Tank car heating system (1983-11-08),

12. 4304271 - Tank car and train thereof and loading and unloading systems (1981-12-08),

13. 4245749 - Safety device (1981-01-20),

14. 4079760 - Baffle for automatic outage (1978-03-21),

15. D244092 - Intermodal container (1977-04-19),

Company Overview

General American Transportation Corporation, based in Chicago, specializes in providing innovative solutions for the transportation industry. The company focuses on the development and manufacturing of railcars and related equipment, emphasizing safety, efficiency, and sustainability. With a commitment to advancing transportation technologies, General American Transportation plays a crucial role in enhancing the logistics and freight sectors, contributing to the overall infrastructure of the United States and beyond.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

25 Patents

#172 in Chicago, IL

#697 in Illinois

#13,370 in US

#25,730 in the World

Chicago, IL, United States of America

General American Transportation Corporation

Forward Citations = 265

21 inventors:

Erling Mowatt-Larssen (11 out of 13 patents)

Edward L Davis (4 out of 4 patents)

Doug Hurst (3 out of 3 patents)

4. Albert E Price (2 out of 3 patents)

5. Edmund R Aller (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: General American Transportation Corporation. Retrieved from https://idiyas.com/company/general-american-transportation

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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