Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440194 | Recovery of precious metals from metal alloys produced aluminothermically from base metal smelter slag | David Krofchak | 2002-08-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6440194 | Recovery of precious metals from metal alloys produced aluminothermically from base metal smelter slag | David Krofchak | 2002-08-27 |