Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6042191 | High wall mining system | Paul Emile Van Es | 2000-03-28 |
| 5938289 | High wall mining conveyor system | Paul Emile Van Es | 1999-08-17 |
| 5848825 | High wall mining conveying method | Paul Emile Van Es | 1998-12-15 |