Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10231060 | Electrostatic headphones | Jörg Riechers | 2019-03-12 |
| 10178465 | Headphone unit | Axel Grell | 2019-01-08 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10231060 | Electrostatic headphones | Jörg Riechers | 2019-03-12 |
| 10178465 | Headphone unit | Axel Grell | 2019-01-08 |