Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7863863 | Multi-cell battery pack charge balance circuit | Nan-Sheng Chang | 2011-01-04 |
| 7688038 | Battery charging apparatus | Hsien-Hung Chen, Nan-Sheng Chang, Yu-Lee Tseng | 2010-03-30 |