Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D349676 | Auxiliary window for automobiles | Clarence Peterson | 1994-08-16 |
| 4842077 | Disk harrow standard for support beams of different cross sections | James Franklin Bierl | 1989-06-27 |
| 4420048 | Disk gang assembly | — | 1983-12-13 |