Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8737074 | Modular direct-current power conversion system and direct-current power conversion module thereof | Ping Yang | 2014-05-27 |
| 8723364 | Uninterruptible power supply having integrated charge/discharge circuit | Ping Yang | 2014-05-13 |
| 8008807 | Uninterruptible power supply with low power loss | Ping Yang | 2011-08-30 |
| 7932636 | Automatic start-up circuit and uninterruptible power supply apparatus having such automatic start-up circuit | Ping Yang | 2011-04-26 |
| 7541695 | Uninterruptible power supply with low power loss | — | 2009-06-02 |