Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11595750 | Multi-range speaker containing multiple diaphragms | Youngil Cho, Christian Femrite | 2023-02-28 |
| 11310604 | Flat speaker driven by a single permanent magnet and one or more voice coils | Darrell Seyler Adams, Youngil Cho | 2022-04-19 |
| 11134333 | Multi-range speaker containing multiple diaphragms | Youngil Cho, Christian Femrite | 2021-09-28 |
| 11044562 | Multi-diaphragm speaker driven by multiple voice coil plates and a shared permanent magnet pair | Youngil Cho, Darrell Seyler Adams | 2021-06-22 |
| 10999673 | Thin speaker with curved or angled structure | Youngil Cho, Christian Femrite | 2021-05-04 |
| 10743097 | Bidirectional speaker using bar magnets | Youngil Cho, Christian Femrite | 2020-08-11 |