Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11839991 | Custom-made blinds andshades cutting machines | Shehua Wei, Peilun Qian | 2023-12-12 |
| 11649673 | Constant force multiple spring curtain winding system | Shehua Wei | 2023-05-16 |