Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9096389 | Advancing longwall system for surface mining | Brad Neilson, Peter M. Dalton, Joseph J. Zimmerman | 2015-08-04 |
| 8770373 | Conveyor system for continuous surface mining | Brad Neilson, Joseph J. Zimmerman | 2014-07-08 |
| 8672415 | Advancing longwall system for surface mining | Brad Neilson, Peter M. Dalton, Joseph J. Zimmerman | 2014-03-18 |
| 8511756 | Continuous surface mining system | Brad Neilson, Ted Doheny, Jez Leeming, Joseph J. Zimmerman | 2013-08-20 |