Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835228 | Process of recovering valuable metals from waste secondary batteries | Jiunn-Ren Lin, I-Long Chang, Jer-Yuan Shiu | 2004-12-28 |
| 6764584 | Process for producing lithium concentrate from brine or seawater | I-Long Chang, Jer-Yuan Shiu, Jiunn-Ren Lin | 2004-07-20 |