Issued Patents 2017
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9681227 | Audio output device and method for determining a speaker cone excursion | Christian Kranz, Markus Hammes | 2017-06-13 |
| 9565505 | Loudspeaker cone excursion estimation using reference signal | Markus Hammes, Christian Kranz | 2017-02-07 |