Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6669274 | Grille attachment to hoods | Christopher M. Hartwell, James M Zubkus, Patrick Predd, Chao H Mao | 2003-12-30 |
| 5289909 | Chute for bulk materials | Arthur S. Maxwell | 1994-03-01 |