Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8636377 | Light tube holder for receiving LED tube or fluorescent tube | Qing-Shan Cao, Yu Hu | 2014-01-28 |
| 8604715 | Lamp tube switch circuit and method thereof | Qing-Shan Cao, Zheng-Nian Liu, Yu Hu | 2013-12-10 |
| 8382502 | Illumination device with a connector having a retainer with a rotary member and a starter and a swich and elastic pieces | Qing-Shan Cao, Yu Hu | 2013-02-26 |
| 8371867 | Illumination device with a connector having a retainer with a rotary member and elastic pieces | Qing-Shan Cao, Zheng-Nian Liu, Jiang QIU | 2013-02-12 |