Issued Patents 2024
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12137311 | Earphone with duct unit dividing pressure equilibrium hole and back hole | Jun Hee HAN, Yong Ju Ji | 2024-11-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12137311 | Earphone with duct unit dividing pressure equilibrium hole and back hole | Jun Hee HAN, Yong Ju Ji | 2024-11-05 |