Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8084953 | Changing power input to a gas discharge lamp | Xuefei Xie, Chenghua Zhu, Bo Zhang | 2011-12-27 |
| 7973494 | Electronic ballast with step up/down power factor correction DC-DC converter suitable for high input voltage applications | Xuefei Xie | 2011-07-05 |