Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7947108 | Precious metal recovery using thiocyanate lixiviant | Rong Wan | 2011-05-24 |
| 7559973 | Precious metal recovery using thiocyanate lixiviant | Rong Wan | 2009-07-14 |
| 7537640 | Precious metal recovery using thiocyanate lixiviant | Rong Wan | 2009-05-26 |
| 7285256 | Precious metal recovery using thiocyanate lixiviant | Rong Wan | 2007-10-23 |
| 5354359 | Hydrometallurgical process for the recovery of precious metal values from precious metal ores with thiosulfate lixiviant | Rong Wan, Richard Clayton | 1994-10-11 |