Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D810137 | Audio input/output device | Hing Wah Tsang, Li Yong | 2018-02-13 |
| D726152 | Speaker | Roman S. Ferber, Hing Wah Tsang | 2015-04-07 |
| D691587 | Speaker | Roman S. Ferber, Hing Wah Tsang | 2013-10-15 |
| D674748 | Portable power supply for a mobile device | Roman S. Ferber, Hing Wah Tsang, Paul Daniel Farrugia, John Liu, Andrew Steven Juhasz +1 more | 2013-01-22 |