Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8991140 | Harvest aid machine | Nathan Dorn, Michael Christensen | 2015-03-31 |
| 8689527 | Harvest aid machine | Robert C. Johnson, Manuel Mercado, Jeff Mathews, Michael Christensen | 2014-04-08 |
| 8418777 | Agricultural folding scraper blade | — | 2013-04-16 |