Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4838014 | Disc cutter rotor assembly | Franja F. Voler, Edmund O. Howell | 1989-06-13 |
| 4815262 | Disc cutterbar construction | Franja F. Voler | 1989-03-28 |
| 4787196 | Self-cleaning rotor assembly | Franja F. Voler, John K. Hale | 1988-11-29 |
| 4693061 | Idler gear mounting for disc cutterbars | Franja F. Voler | 1987-09-15 |
| 4653253 | Self-cleaning rotor assembly | Franja F. Voler, John K. Hale | 1987-03-31 |
| 4607996 | Lateral transport trailer | — | 1986-08-26 |
| 4558560 | Pivot tongue harvester with lateral transport | — | 1985-12-17 |
| 4418518 | Mechanism for spring loading a transport lock | A. Dale Gamber, Philip J. Ehrhart | 1983-12-06 |
| 4377930 | Infinite reel height adjustment | Lawrence M. Halls | 1983-03-29 |
| 4280318 | Infinite reel adjustment mechanism | — | 1981-07-28 |
| 4216641 | Crop harvesting machine | Philip J. Ehrhart | 1980-08-12 |