Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10104459 | Audio system with conceal detection or calibration | Lei Chen, Hann-Shi Tong, Yu-Chieh Lai | 2018-10-16 |
| 10003879 | Earphone with expanding speaker device | — | 2018-06-19 |
| 9992532 | Hand-held electronic apparatus, audio video broadcasting apparatus and broadcasting method thereof | Chih-Chiang Cheng, Chun-Min Lee, Hann-Shi Tong, Lei Chen, Chin-Kuo Huang | 2018-06-05 |