Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10386390 | Voltmeter and method for using the voltmeter | TSUNG-JEN CHUANG, HAI-WEN WANG | 2019-08-20 |
| 8249277 | Apparatus capable of switching volume adjustment mode automatically and volume adjustment method thereof | SHIH-FANG WONG, Bin He, TSUNG-JEN CHUANG | 2012-08-21 |
| 8165307 | Audio electronic device | SHIH-FANG WONG | 2012-04-24 |
| 7567062 | Charging circuit | SHIH-FANG WONG | 2009-07-28 |