Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10385420 | Purification of copper concentrate by removal of arsenic and antimony with concomitant regeneration and recycle of lixiviant | Peter Bartsch, Stuart Saich | 2019-08-20 |
| 10316388 | Precious metals recovery | Dave SHUCK, Jerry KOLSTAD, Mark RAPKOCH | 2019-06-11 |