Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8899778 | Optical cavity structure of LED lighting apparatus | Chin-Chia Chang | 2014-12-02 |
| 8291538 | Mop structure of converting vertical linear displacement into unidirectional rotation for dewatering a mop | Yang Yi, Mike Chen | 2012-10-23 |
| 8225454 | Mop disc and fabric frame fixation structure | Yang Yi, Mike Chen | 2012-07-24 |