Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9874769 | Cloth attachment device and cloth attachment method using the same | Qiang Xiang, Laifeng Liu | 2018-01-23 |
| 9803757 | Auto-switching tee joint, device and method for washing and drying clamps | Laifeng Liu, Qiang Xiang | 2017-10-31 |