Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6808333 | Pivot pin assembly | Dick Edward Friesen | 2004-10-26 |
| 6666156 | Seed flap for controlling seed placement | Dean Mayerle, Vince Colistro, Dick Edward Friesen | 2003-12-23 |