Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6428597 | Heap leach agglomeration/percolation extraction aids for enhanced gold and silver recovery | — | 2002-08-06 |
| 6409799 | Copper leach process aids | Donald Carroll Roe, Jorge Vergara Chavez, Andres Reghezza Inzunza | 2002-06-25 |