Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7263930 | Railway truck suspension design | Thomas R. Berg | 2007-09-04 |
| 7174837 | Three-piece motion control truck system | Thomas R. Berg, Nathan Reese, Ralph H. Schorr, Jeffrey Ruback | 2007-02-13 |
| 6681943 | Railcar draft gear assembly and system | Ronald E. Barker, Charles E. Burkhart, Marlin E. Clark, John F. Deppen, V. Terrey Hawthorne +3 more | 2004-01-27 |
| 6446820 | Railcar draft gear assembly and system | Ronald E. Barker, Charles E. Burkhart, Marlin E. Clark, John F. Deppen, V. Terrey Hawthorne +3 more | 2002-09-10 |
| 5927523 | Rail car buffer | Russell J Huggins, Mark P. Scott | 1999-07-27 |