Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7396278 | Cleaning shoe spreaders | Jeffrey A. Nelson, Jason Thomas Abbott | 2008-07-08 |
| 6921330 | Front chaffer and cleaning fan | Sheldon Joseph Grywacheski, Jeffrey Ray Payne, Jeffrey Schlautman, Glenn E. Pope | 2005-07-26 |
| 6773343 | Front chaffer and cleaning fan | Sheldon Joseph Grywacheski, Jeffrey Ray Payne, Jeffrey Schlautman, Glenn E. Pope | 2004-08-10 |
| 5394946 | Row cleaning attachment | David J. Rylander | 1995-03-07 |