Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9923479 | Power supply unit and calibration method to improve reliability | Yu Liu, Shun-Hung Lo | 2018-03-20 |
| 9692255 | Power supply system and control method thereof | Yu Liu | 2017-06-27 |
| 7405668 | Mobile communication device for receiving alarm warnings and a method thereof | — | 2008-07-29 |