Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5784867 | Variable force traction enhance systems | Douglas F. McFarland | 1998-07-28 |
| 5778648 | Lawn mower clipping collection system | Scott A. Schick | 1998-07-14 |
| 5515669 | Anti-buck device for out-front mower tractors | Scott A. Schick | 1996-05-14 |
| 5279376 | Force neutralizing mechanism for a single lever control | Xinzhan Z. Yang, Douglas F. McFarland, Steven D. Shivvers | 1994-01-18 |
| 5131483 | Single lever control | — | 1992-07-21 |
| 4750273 | Computer controlled grain drying | Steven D. Shivvers | 1988-06-14 |
| 4599809 | Grain dryer system | — | 1986-07-15 |