Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10056066 | Active noise reduction | Markus Christoph, Johann Freundorfer | 2018-08-21 |
| 9734814 | Active noise reduction | Markus Christoph, Johann Freundorfer | 2017-08-15 |
| 9099076 | Active noise reduction | Markus Christoph, Johann Freundorfer | 2015-08-04 |