Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11251801 | Frequency adjusting apparatus and frequency adjusting method | Gerchih Chou, Han-Chieh Hsieh | 2022-02-15 |
| 8300427 | Power conversion apparatus and over current protection method thereof | Ju-Lin Chia | 2012-10-30 |
| 5598688 | Apparatus for clearing water creepers | — | 1997-02-04 |
| 5372217 | Emergency escape device | — | 1994-12-13 |