Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9903202 | Shield for sumping frame of mining machine | — | 2018-02-27 |
| 9482090 | Air flow system for mining machine | Richard D. Boyd, Brad Neilson | 2016-11-01 |
| 9291052 | Air flow system for mining machine | Richard D. Boyd, Brad Neilson | 2016-03-22 |
| 8231179 | Cutter drum extension mechanism | Joseph P. Gierlach | 2012-07-31 |
| 7703857 | Continuous miner having a sumping frame | — | 2010-04-27 |
| 4569489 | Cable tension control device | George R. Frey, Ronald K. Dickey, Daryl A. Bleakley | 1986-02-11 |