Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7640874 | Seeding implement with front rockshaft-mounted fertilizer openers | — | 2010-01-05 |
| 7571688 | Integrated clutches for a seeding machine | Michael E. Friestad, Keith L. Felton | 2009-08-11 |
| 7204319 | Jointed rockshaft with angularly adjustable segments | John H. Meinert, Andrew Sahr | 2007-04-17 |
| 7044047 | Cylinder mounted stroke control | Robert Bennett, William Douglas Graham | 2006-05-16 |
| 4932476 | Leveling position indicator | — | 1990-06-12 |
| 4809786 | Remotely adjustable disk leveling system | Warren L. Tompson | 1989-03-07 |