Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9761143 | Proximity detection system with approach zone | Tom Michaud, Brian Dunkin, David Hakins, Dwayne Towery, Gary Herda | 2017-09-12 |
| 9712949 | Method and apparatus for protecting a miner | Michael W. Bertosh, Kelly Norton, Brian Dunkin | 2017-07-18 |
| 9537583 | Method, controller, and system for tunnel communication | Michael W. Bertosh | 2017-01-03 |