Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8274368 | Chipless microwave identification tag | Kai Yung, Ching Yuen Chan | 2012-09-25 |
| D636014 | Violin shoulder rest | — | 2011-04-12 |
| 7488877 | Violin shoulder rest | Diana C. Liu | 2009-02-10 |
| 7381483 | Core having magnetic properties | Ka Wai Eric Cheng, Chak Yin Tang, Hang Wu | 2008-06-03 |