Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D797060 | Lift-control device for window coverings | Alan Wing Hor Cheng | 2017-09-12 |
| 9670723 | Motor drive system for window covering system with continuous cord loop | Alan Wing Hor Cheng, Marc Rashad Bishara | 2017-06-06 |