Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5152357 | Swivel hitch for connecting an implement to a tractor | Kenneth W. McLean | 1992-10-06 |
| 4838014 | Disc cutter rotor assembly | Earl E. Koch, Edmund O. Howell | 1989-06-13 |
| 4815262 | Disc cutterbar construction | Earl E. Koch | 1989-03-28 |
| 4787196 | Self-cleaning rotor assembly | John K. Hale, Earl E. Koch | 1988-11-29 |
| 4693061 | Idler gear mounting for disc cutterbars | Earl E. Koch | 1987-09-15 |
| 4653253 | Self-cleaning rotor assembly | John K. Hale, Earl E. Koch | 1987-03-31 |