Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8707925 | Air intake with air mass sensor and sound dampening resonator | Ralf SIBER, Wolfgang Fasan | 2014-04-29 |
| 8555846 | Air purifier having resonator installed in the air outlet | Torsten Lang | 2013-10-15 |