Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8491825 | Process of making natural tourmaline fiber and filter | Hung-Jen Chen, Chia-Jen Chen, Yung-Chien Chen, Chao Chen | 2013-07-23 |
| 8231968 | Natural tourmaline anion fiber and filter and producing method | Hung-Jen Chen, Chia-Jen Chen, Yung-Chien Chen, Chao Chen | 2012-07-31 |
| 7011784 | Industrial nylon composition | Lung-Tao Lin | 2006-03-14 |