Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10750267 | Earplug apparatus and electronic apparatus | — | 2020-08-18 |
| 10620722 | Method for determining target operating frequency of stylus, and touch screen and stylus thereof | Zhibing Liang | 2020-04-14 |