Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10425739 | Acoustic deflector with convective cooling | Zhen Xu, Guanghua Shi, Peter J. Wagner, II | 2019-09-24 |
| 8103033 | Audio system for portable device | Steven DRAKE, Jeffery Copeland, Daniel Harmon, Todd Charter Brown, Jacky Chi-Hung Chan | 2012-01-24 |
| 7699139 | Diaphragm surround | Zhen Xu, Robert Preston Parker, Jason D. Silver | 2010-04-20 |