Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10462599 | Systems and methods of adjusting bass levels of multi-channel audio signals | Hilmar Lehnert, Aurelio Ramos | 2019-10-29 |
| 10447221 | Playback device group volume control | Neil Griffiths, Luis R. Vega Zayas | 2019-10-15 |