Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11172276 | Annular radiation speaker structure | Ho-Lung Lu | 2021-11-09 |
| 11146883 | Ear-hook earphone with detachable microphone support | Ho-Lung Lu | 2021-10-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11172276 | Annular radiation speaker structure | Ho-Lung Lu | 2021-11-09 |
| 11146883 | Ear-hook earphone with detachable microphone support | Ho-Lung Lu | 2021-10-12 |