| Number | Name | Date | Kind |
|---|---|---|---|
| D353874 | Clivio | Dec 1994 | S |
| D385948 | Guo | Nov 1997 | S |
| D466183 | Tse | Nov 2002 | S |
| D470567 | Alkalay et al. | Feb 2003 | S |
| D479302 | Chen | Sep 2003 | S |
| D491252 | Chen | Jun 2004 | S |
| D499790 | Chen | Dec 2004 | S |
| D513426 | Chen | Jan 2006 | S |
| D513427 | Chen | Jan 2006 | S |
| 6981661 | Chen | Jan 2006 | B1 |
| D557377 | Chen | Dec 2007 | S |
| D565700 | Chen | Apr 2008 | S |
| D606626 | Zore | Dec 2009 | S |