Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D699270 | Combined grille guard bracket and assembly | Lyle Beidler, William R. Frederick, Marvin D. Pepper | 2014-02-11 |
| 6789568 | Fluid flow control mechansim | Michael C. Bunnell | 2004-09-14 |
| 4817731 | Ripper mechanism | — | 1989-04-04 |