Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416963 | Portable playback device power management | Liang Chai, Xiang Wang, Brenda Stefani, Allan Velzy, Edwin Joseph Fitzpatrick, III | 2025-09-16 |
| 12019496 | Portable playback device power management | Liang Chai, Xiang Wang, Brenda Stefani, Allan Velzy, Edwin Joseph Fitzpatrick, III | 2024-06-25 |
| 11513581 | Portable playback device power management | Liang Chai, Xiang Wang, Brenda Stefani, Allan Velzy, Edwin Joseph Fitzpatrick, III | 2022-11-29 |
| 11126243 | Portable playback device power management | Liang Chai, Xiang Wang, Brenda Stefani, Allan Velzy, Edwin Joseph Fitzpatrick, III | 2021-09-21 |