Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8604706 | Lamp tube switch circuit | Qing-Shan Cao, Lin Zhou, Ye-La An | 2013-12-10 |
| 8604721 | Lamp tube switching circuit | Qing-Shan Cao, Nan Zeng, Miao Guo | 2013-12-10 |
| 8604715 | Lamp tube switch circuit and method thereof | Qing-Shan Cao, Yu Hu, Jian-Pu Chen | 2013-12-10 |
| 8561340 | Illumination device | Qing-Shan Cao, Yu Hu, Jun Liu | 2013-10-22 |
| 8403692 | Illumination device | Qing-Shan Cao, Yu Hu, Miao Guo | 2013-03-26 |
| 8371868 | Illumination device with a connector having a retainer with a rotary member and four elastic pieces | Qing-Shan Cao, Yang Shu | 2013-02-12 |
| 8371867 | Illumination device with a connector having a retainer with a rotary member and elastic pieces | Qing-Shan Cao, Jian-Pu Chen, Jiang QIU | 2013-02-12 |
| 8366467 | Illumination device with a connector having a retainer with a rotary member | Qing-Shan Cao, Lin Zhou, Ye-La An | 2013-02-05 |