For the Inventor, By the Inventor

Enter assignee name

Houston, TX, United States of America

Richmond Tank Car Company

USPTO Granted Patents = 3

Forward Citations = 38

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7 inventors (with patents filed for the assignee):

Marvin B Stark (1 out of 11 patents)

John T Ostgaard (1 out of 7 patents)

Franklin P Adler (1 out of 21 patents)

4. Marvin Starks (1 out of 1 patent)

5. Wayne D Harbin (1 out of 1 patent)

6. Kenneth W Britt (1 out of 1 patent)

7. Rodney L Palmer (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 4407203 - Railroad tank car lift lug (1983-10-04),

2. 4406152 - Method and apparatus for calibrating a railroad tank car (1983-09-27),

3. 4275662 - Railway hopper car roof support structure (1981-06-30),

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#1,188 in Houston, TX

#4,679 in Texas

#71,949 in US

Houston, TX, United States of America

Richmond Tank Car Company

Forward Citations = 38

7 inventors:

Marvin B Stark (1 out of 11 patents)

John T Ostgaard (1 out of 7 patents)

Franklin P Adler (1 out of 21 patents)

4. Marvin Starks (1 out of 1 patent)

5. Wayne D Harbin (1 out of 1 patent)

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