Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6102131 | Quick connect dozer frame assembly for tractors and the like | — | 2000-08-15 |
| 4699221 | Chisel plow release mechanisms | Kenneth J. Lange | 1987-10-13 |
| 4683958 | Cultivator shank | Kenneth J. Lange | 1987-08-04 |
| 4296818 | Rotary rock picker | Kenneth J. Lange | 1981-10-27 |