Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8622479 | Mining methods and apparatus | David Charles Reid, David William Hainsworth, Jonathan Carey Ralston, Michael S. Kelly, Ronald John McPhee | 2014-01-07 |
| 8240773 | Method and apparatus for monitoring gateroad structural change | Jonathon Carey Ralston, Michael S. Kelly | 2012-08-14 |