Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11448008 | Curtain winding device | Zhenbang Lei | 2022-09-20 |
| 11448010 | Ladder tape device for a venetian blind | Zhenbang Lei | 2022-09-20 |
| 11326397 | Roller shade actuation device | Zhenbang Lei | 2022-05-10 |
| 11286714 | Window shutter actuation device | Zhenbang Lei | 2022-03-29 |