Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5815958 | Excavator dipper latch assembly having removable tapered latch bar | Mark R. Alt | 1998-10-06 |
| 4625437 | Shroud for a digging bucket lip | Linden T. Curtis, William George Franklin | 1986-12-02 |
| 4525994 | Coupling link | Mark R. Alt | 1985-07-02 |
| 4517756 | Snubber for dipper door | Mark R. Alt | 1985-05-21 |