Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10749561 | Headphone transmitting and receiving signals through a feed plate antenna with an L-shaped probe | Wai Yin Mung, Ka Ming Wu | 2020-08-18 |
| 9674600 | Earphones with air release valves | — | 2017-06-06 |