Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4589498 | Plow share overcap | — | 1986-05-20 |
| 4529042 | Tillage tool appendage | — | 1985-07-16 |
| 4457381 | Stubble mulch sweep | — | 1984-07-03 |
| D273085 | Spacer for fertilizer tubing | — | 1984-03-20 |
| D268344 | Edge casting for soil stabilizer tine | Norvel J. Ronck | 1983-03-22 |
| 4363364 | Plow chisel with pointed shank having pointed chisel cap secured thereto by weld | — | 1982-12-14 |
| 4355589 | Fertilizer applicator knife assembly | — | 1982-10-26 |
| D262972 | Insert for agricultural applicator knife | Norvel J. Ronck | 1982-02-09 |