Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9416660 | Pin handling device, coupling pin and method for pin handling in high wall mining | — | 2016-08-16 |
| 8939516 | Rotary cutter drum for continuous mining machine | Stewart Myers, Robert L. Henry | 2015-01-27 |
| 8876220 | Segments and apparatus for high wall mining including fluid feed | Robert Th. Stein | 2014-11-04 |