Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10876399 | Mining machine with multiple cutter heads | Geoffrey W. Keech, Bradley M. Neilson, Nagy Daher, Ric Boyd | 2020-12-29 |
| 10550693 | Machine supporting rock cutting device | Geoffrey W. Keech | 2020-02-04 |
| 10533416 | Rock cutting device | Geoffrey W. Keech | 2020-01-14 |