Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10106868 | Process for extracting noble metals from anode slime | Songlin Zhou | 2018-10-23 |
| 9017542 | Process for recovering valuable metals from precious metal smelting slag | Songlin Zhou | 2015-04-28 |