Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11706554 | Earphone with an acoustic rear chamber vent | Nuno Beleza FREIRE | 2023-07-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11706554 | Earphone with an acoustic rear chamber vent | Nuno Beleza FREIRE | 2023-07-18 |