Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8241537 | Method for manufacturing polymeric fibrils | Haw-Jer Chang, Hung-En Chen, Jen-Hsiung Lee, Ching-Hui Tseng | 2012-08-14 |
| 7740461 | Apparatus and method for manufacturing polymeric fibrils | Haw-Jer Chang, Hung-En Chen, Jen-Hsiung Lee, Ching-Hui Tseng | 2010-06-22 |
| 7210482 | Face mask structure | Cheng-Kun Chu, Hung-En Chen, Jing-Tyr Lin, Jen-Hsiung Lee | 2007-05-01 |
| 6517589 | Manufacturing method of coloring and lustering substance | Hung-En Chen, Jung-Shen Lien | 2003-02-11 |