Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9677398 | Use of ventilation air methane exhausted during mining of non-combustible ore in a surface appliance | Ronald O. HUGHES, David M. Hansen | 2017-06-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9677398 | Use of ventilation air methane exhausted during mining of non-combustible ore in a surface appliance | Ronald O. HUGHES, David M. Hansen | 2017-06-13 |