Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11445291 | Noise-reducing earphone with adjustable voice | Shun Ming Yuen, Wai Yin Mung, Shui Shing Choi | 2022-09-13 |
| 10978771 | Lumped circuit balance converter applied to double-sided parallel lines | Shun Ming Yuen, Wai Yin Mung | 2021-04-13 |
| 10749561 | Headphone transmitting and receiving signals through a feed plate antenna with an L-shaped probe | Chee Kit Yuen, Wai Yin Mung | 2020-08-18 |
| 7046999 | Half-duplex wireless audio communication system | Yan So | 2006-05-16 |