Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11118586 | Bailer-type long-shaft pump and application thereof | Yufeng Chang, Ye Grace Chen, Xiaofeng Gu, Hao Chen, Jianzhong Yu +4 more | 2021-09-14 |
| 8506124 | Light-emitting device and method | Chin-Feng Chen | 2013-08-13 |
| 8317373 | Luminous device with changeable color and brightness | Chin-Feng Chen | 2012-11-27 |