Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7805109 | Detachable earphone structure | Tse-Ming Tsai, Shang-Hsing Chung | 2010-09-28 |
| 7577465 | Slidable bluetooth earphone structure | Yu-Chang Cheng, Tse-Ming Tsai | 2009-08-18 |
| D573140 | Bluetooth earphone | Tse-Ming Tsai, Shang-Hsing Chung | 2008-07-15 |