Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8837766 | Ear-loop earphone | Chun-Hsin Liu | 2014-09-16 |
| 8320602 | Adjustable earphone | Chun-Hsin Liu, Liang-Yi Liu | 2012-11-27 |
| 8139781 | Bluetooth headset with a retractable structure | Chi-Hsiang Cheng, Liang-Yi Liu | 2012-03-20 |