Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11271423 | Circuit and method for controlling charging of emergency lighting luminaires by a switch | Hongyue Du | 2022-03-08 |
| 11245283 | Circuit and method for controlling brightness of emergency lighting luminaires by a switch | Hongyue Du | 2022-02-08 |