Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11137119 | Tubular device for fitting to a tubular light fitting | Haimin Tao, Tian Xiang Wen, Feng Ju, Frits Tobi De Jongh, PIETER JOHANNES STOBBELAAR | 2021-10-05 |
| 11118773 | Conversion circuit between fluorescent ballast and LED | Xianhui Zhang, Frits Tobi De Jongh, Haimin Tao | 2021-09-14 |