| Number | Name | Date | Kind |
|---|---|---|---|
| D250711 | Persson et al. | Jan 1979 | S |
| D346601 | Lyons | May 1994 | S |
| D442943 | Chang | May 2001 | S |
| D469421 | Stickles et al. | Jan 2003 | S |
| D474032 | Jørgensen | May 2003 | S |
| D483349 | Murakami | Dec 2003 | S |
| D497154 | Lin et al. | Oct 2004 | S |
| D521244 | Germany | May 2006 | S |