Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8485107 | Devices and systems for controlling travel of a railcar | Thomas J. Heyden, Gregory P. Reitz, John A. Hooper, Jim Thomas | 2013-07-16 |
| 8079309 | Devices and systems for controlling travel of a railcar | Thomas J. Heyden, Gregory P. Reitz, John A. Hooper, Jim Thomas | 2011-12-20 |
| 7649350 | Railcar presence detector | Thomas J. Heyden | 2010-01-19 |
| 7325567 | Pneumatic retarder acutator valve | Thomas J. Heyden, James D. Braatz | 2008-02-05 |
| 7140698 | Hydraulic control and operation system for a railroad car retarder | James D. Braatz, Richard C. Bohme | 2006-11-28 |
| 4714917 | Apparatus for detecting cracks in a flexible coupling | Louis F. Counter, Richard C. Born, LeRoy M. Walters, Lawrence G. Searing | 1987-12-22 |