Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10735855 | Waterproof headphone structure | Isword Zhang | 2020-08-04 |
| 10477307 | Waterproof headphone structure | Isword Zhang | 2019-11-12 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10735855 | Waterproof headphone structure | Isword Zhang | 2020-08-04 |
| 10477307 | Waterproof headphone structure | Isword Zhang | 2019-11-12 |