Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11523199 | Wireless audio transmission system having at least one microphone hand-held transmitter and/or bodypack | — | 2022-12-06 |
| 11412806 | Protection helmet with two microphones | Hatem Röschmann-Foudhaili | 2022-08-16 |