Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9628899 | Piezoelectric ceramic speaker and dual-band earphone having thereof | To-Teng HUANG | 2017-04-18 |
| 9615162 | Earphone with inverse sound waves | To-Teng HUANG | 2017-04-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9628899 | Piezoelectric ceramic speaker and dual-band earphone having thereof | To-Teng HUANG | 2017-04-18 |
| 9615162 | Earphone with inverse sound waves | To-Teng HUANG | 2017-04-04 |