Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835228 | Process of recovering valuable metals from waste secondary batteries | Jiunn-Ren Lin, I-Long Chang, Yu Jiang | 2004-12-28 |
| 6764584 | Process for producing lithium concentrate from brine or seawater | I-Long Chang, Yu Jiang, Jiunn-Ren Lin | 2004-07-20 |
| 6514311 | Clean process of recovering metals from waste lithium ion batteries | Jiunn-Ren Lin, Chang Meng Fan, I-Long Chang | 2003-02-04 |