Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9351437 | Rear folding tool bar implement | John D. Martens | 2016-05-31 |
| 7685950 | Furrow opener apparatus with two way depth control | — | 2010-03-30 |
| 7540246 | Furrow opener | Peter Hugh Barton | 2009-06-02 |
| 7032527 | Vertical positioner for seed planter having integral locking mechanism | Calvin Greenstein | 2006-04-25 |
| 6808333 | Pivot pin assembly | Robin B. Schilling | 2004-10-26 |
| 6666156 | Seed flap for controlling seed placement | Dean Mayerle, Vince Colistro, Robin B. Schilling | 2003-12-23 |
| 6488461 | Interlocking two-piece washer | Darwin L. Zacharias | 2002-12-03 |