Issued Patents 2022
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11489966 | Method and apparatus for in-ear canal sound suppression | Marc Boillot, John Usher, Steven Wayne Goldstein | 2022-11-01 |
| 11471331 | Earplug for selective attenuation of sound and an insert with an acoustic filter for use in an earplug | Christian Dittrich, Marco Mietta | 2022-10-18 |
| 11330382 | Acoustical protector for audio devices and audio device provided with said protector | Paolo Canonico | 2022-05-10 |