Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10880671 | Systems and methods of adjusting bass levels of multi-channel audio signals | Hilmar Lehnert, Aurelio Ramos | 2020-12-29 |
| 10840867 | Playback device group volume control | Neil Griffiths, Luis R. Vega Zayas | 2020-11-17 |