Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4560011 | Cultivator row unit with ridger/bedder implement | Richard L. Peterson, James A. Johnson, Roger J. Scheurer | 1985-12-24 |
| 4520876 | Gauge and guide wheel assembly | Richard L. Peterson, Roger J. Scheurer | 1985-06-04 |
| 4466492 | Earthworking implement having spring biased arms | — | 1984-08-21 |
| 4461355 | Cultivator row unit with ridger/bedder implement | Richard L. Peterson, James A. Johnson, Roger J. Scheurer | 1984-07-24 |
| 4428437 | Mount assembly including structure to effect substantially constant biasing force | — | 1984-01-31 |
| 4425972 | Split ring spring for earth working tool | — | 1984-01-17 |
| 4423787 | Harrow | — | 1984-01-03 |
| 4377979 | Conservation tillage row crop planter system | Richard L. Peterson, James A. Johnson, Roger J. Scheurer | 1983-03-29 |
| 4318638 | Cable detensioning apparatus | Jon Promersberger | 1982-03-09 |