Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8834593 | Ore beneficiation | Howard W. Hilshorst, Gregory D. Lindahl | 2014-09-16 |
| 8741023 | Ore beneficiation | Howard W. Hilshorst, Gregory D. Lindahl | 2014-06-03 |
| 8545594 | Ore beneficiation | Howard W. Hilshorst, Gregory D. Lindahl | 2013-10-01 |