| Number | Name | Date | Kind |
|---|---|---|---|
| D331807 | Sodergren | Dec 1992 | S |
| D456082 | Bouse et al. | Apr 2002 | S |
| D467348 | McMichael et al. | Dec 2002 | S |
| D472324 | Rumore et al. | Mar 2003 | S |
| D472644 | Dawson et al. | Apr 2003 | S |
| D500142 | Crisanti et al. | Dec 2004 | S |
| D512512 | Bell et al. | Dec 2005 | S |
| D528215 | Malmsater | Sep 2006 | S |
| D531321 | Godfrey et al. | Oct 2006 | S |
| 7186383 | Webster et al. | Mar 2007 | B2 |
| 7285425 | Shareef et al. | Oct 2007 | B2 |
| 7785865 | Qinwei | Aug 2010 | B2 |
| 20090191617 | Lim et al. | Jul 2009 | A1 |