Issued Patents 2021
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11187034 | Driving mechanism for curtain cord winding reels | Xingbang Lei | 2021-11-30 |
| 11091954 | Curtain and drawstring adjustment device thereof | Xingbang Lei | 2021-08-17 |
| 11028641 | Built-in roller shade actuation device | Xingbang Lei | 2021-06-08 |
| 11028642 | Roller shade actuation device | Xingbang Lei | 2021-06-08 |
| 10988981 | Pull-cord control device for curtain without operation cord | Xingbang Lei | 2021-04-27 |