Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7974664 | Bluetooth earphone and ear-hook device thereof | Chun-Hsin Liu, Chung-Chun Wu | 2011-07-05 |
| 7778410 | Personal audio listening device | Chun-Hsin Liu, Chung-Chun Wu, Liang-Yi Liu | 2010-08-17 |