Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9400014 | Rotating assembly for machine | — | 2016-07-26 |
| 8272151 | Hoist and drag system for mining | William Ries, Robert Vallier, Eric Evenson | 2012-09-25 |
| 6752282 | Swing drive assembly | Robert F. Brown, Carl D. Gilmore | 2004-06-22 |
| 5205657 | Thrust cage roller circle | — | 1993-04-27 |