Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4779384 | Rail grinder | John J. Shoenhair, Darrell E. Johnson, Richard J. Gitter, Bernard C. Lancette | 1988-10-25 |
| 4390085 | Automatic mechanical brake adjuster | Terry R. Downing, John M. Zorns | 1983-06-28 |