Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE40484 | Tracking, propulsion and braking system for bridge tripper/hopper car | Ronald R. Kelly | 2008-09-09 |
| 7108124 | Method for multiple lift stacking using mobile conveyor system | Ronald R. Kelly | 2006-09-19 |
| 6782993 | Mobile conveyor system and method for multiple lift stacking | Ronald R. Kelly | 2004-08-31 |
| 6098780 | Tracking, propulsion and braking system for bridge tripper/hopper car | Ronald R. Kelly | 2000-08-08 |
| 6085890 | Heap leach stacking process | Ronald R. Kelly | 2000-07-11 |