| Number | Name | Date | Kind |
|---|---|---|---|
| D244686 | Hansen | Jun 1977 | S |
| 6683653 | Miyake et al. | Jan 2004 | B1 |
| 6768868 | Schnell | Jul 2004 | B1 |
| D518843 | Tullberg et al. | Apr 2006 | S |
| D542820 | Depay | May 2007 | S |
| D591321 | Sheppard et al. | Apr 2009 | S |
| D609727 | Adolfsson et al. | Feb 2010 | S |
| D610178 | Adolfsson et al. | Feb 2010 | S |
| D617821 | Kaplan et al. | Jun 2010 | S |
| D619155 | Kim et al. | Jul 2010 | S |