Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11134333 | Multi-range speaker containing multiple diaphragms | Leeg Hyun Cho, Youngil Cho | 2021-09-28 |
| 10999673 | Thin speaker with curved or angled structure | Leeg Hyun Cho, Youngil Cho | 2021-05-04 |