Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5799483 | Combine harvester header lateral levelling | Douglas Voss | 1998-09-01 |
| 5557912 | Stripper header attachment | Douglas Voss, David S. Rea, Murray W. Mills | 1996-09-24 |
| 4657029 | Stone trap for a combine harvester | William N. Helm | 1987-04-14 |