Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6986432 | Common cast draft sill for type E and F draft gear | Paul Limbach, Andrew G. Kurtyak, John F. Oesch | 2006-01-17 |
| 6681943 | Railcar draft gear assembly and system | Ronald E. Barker, Charles E. Burkhart, Marlin E. Clark, V. Terrey Hawthorne, Horst T. Kaufhold +3 more | 2004-01-27 |
| 6446820 | Railcar draft gear assembly and system | Ronald E. Barker, Charles E. Burkhart, Marlin E. Clark, V. Terrey Hawthorne, Horst T. Kaufhold +3 more | 2002-09-10 |
| 5746335 | Double acting center-of-car cushioning device | Steve A. Brough | 1998-05-05 |