Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10506346 | Dome tweeter | Hongzai Xie | 2019-12-10 |
| 10448166 | Ultra-thin planar magnetic film full-frequency speaker | — | 2019-10-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10506346 | Dome tweeter | Hongzai Xie | 2019-12-10 |
| 10448166 | Ultra-thin planar magnetic film full-frequency speaker | — | 2019-10-15 |