Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10154349 | Speaker device | Shugang Li, Cheng Zhang | 2018-12-11 |
| 10104466 | Speaker device | Shugang Li, Cheng Zhang | 2018-10-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10154349 | Speaker device | Shugang Li, Cheng Zhang | 2018-12-11 |
| 10104466 | Speaker device | Shugang Li, Cheng Zhang | 2018-10-16 |