Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4702323 | Ridge tillage attachment for planters | Edward H. Smit, Charles E. Sukup | 1987-10-27 |
| 4604842 | Drying bin floor | — | 1986-08-12 |
| 4579102 | Biomass heat exchanger furnace | — | 1986-04-01 |
| 4449510 | Biomass heat exchanger furnace | — | 1984-05-22 |
| 4440637 | Rotary grain screeners | Edward H. Smit | 1984-04-03 |
| 4248538 | Grain stirring apparatus and method | — | 1981-02-03 |