Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9503805 | Piezoelectric ceramic dual-frequency earphone structure | To-Teng HUANG | 2016-11-22 |
| 9467784 | Piezoelectric-type speaker | To-Teng HUANG | 2016-10-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9503805 | Piezoelectric ceramic dual-frequency earphone structure | To-Teng HUANG | 2016-11-22 |
| 9467784 | Piezoelectric-type speaker | To-Teng HUANG | 2016-10-11 |