Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8584964 | Distribution system for liquid manure spreader | Randy M. McMahon, Donald R. Marcy, Ronald J. Veenker | 2013-11-19 |
| 6802270 | Trailer incorporating carriage system | Randy M. McMahon, Trent J. Hoek | 2004-10-12 |
| 6776569 | Grain cart auger with clutch | Randy M. McMahon, Donald R. Marcy, Trent J. Hoek | 2004-08-17 |
| 6488114 | Grain cart | Randy M. McMahon, Donald R. Marcy, Trent J. Hoek | 2002-12-03 |