Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11126243 | Portable playback device power management | Liang Chai, Xiang Wang, Brenda Stefani, Lyford Beverage, Jr., Allan Velzy | 2021-09-21 |
| 11093016 | Portable playback device power management | Joshua Nicholas, Brenda Stefani, Liang Chai, Xiang Wang, Allan Velzy +1 more | 2021-08-17 |