Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5125716 | Vehicle cab door construction | Richard Jon Smith, Edward H. Kiefer | 1992-06-30 |
| 5076637 | Vehicle cab window | John J. Larkin | 1991-12-31 |
| 4758032 | Window latch | — | 1988-07-19 |
| 4549625 | Instrument panel cover assembly | — | 1985-10-29 |
| 4518195 | Window structure for tractor cab | George P. Lysenko, Richard J. Vize, Edward H. Kiefer, Richard Jon Smith | 1985-05-21 |