Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11528572 | Electro-acoustic transducer including a miniature voice coil | David W. Beverly | 2022-12-13 |
| 11297412 | Miniature moving coil loudspeaker with ferrofluid | Weidong Zhu, Mark A. Hayner | 2022-04-05 |