Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5284251 | Tension bar screen | Gevan R. Marrs | 1994-02-08 |
| 4244532 | Crusher swing jaw | Geräld Kroening | 1981-01-13 |
| 4232833 | Cone crusher setting indicator | — | 1980-11-11 |
| 4206881 | Cone crusher anti-spin mechanism | — | 1980-06-10 |