Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6439796 | Connector pin apparatus and associated methods | John A. Ruvang | 2002-08-27 |
| 6108950 | Self-adjusting tooth/adapter connection system for material displacement apparatus | John A. Ruvang | 2000-08-29 |
| D365109 | Mining shovel tooth | Howard W. Robinson, John A. Ruvang | 1995-12-12 |
| 4716667 | Excavating tooth and wear cap assembly | — | 1988-01-05 |