Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5885155 | Threshing assembly for a combine | Mark R. Underwood | 1999-03-23 |
| 5816911 | Jump ring on grain separating concave | — | 1998-10-06 |
| 5791986 | Combine ripple pan | Mark R. Underwood | 1998-08-11 |
| 5779542 | Nylatron support bearing for cage | Mark R. Underwood | 1998-07-14 |
| 5775991 | Hour glass shape discharge beater | Mark R. Underwood | 1998-07-07 |
| 5497605 | Header and feeder for a grain combine | Mark R. Underwood | 1996-03-12 |
| 5498206 | Rethreshing rotor for grain combine | Mark R. Underwood | 1996-03-12 |