Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9890939 | Switch structure and flashlight with the same | Guoxin Yu, Bing Liang | 2018-02-13 |
| 9791137 | Lamp with assembling and disassembling function | Guoying Li, Guangming Wu, Bing Liang, Guoxin Yu | 2017-10-17 |