| Number | Name | Date | Kind |
|---|---|---|---|
| 4457458 | Heinol | Jul 1984 | A |
| D468639 | Wennerstrom et al. | Jan 2003 | S |
| 6510971 | Martin | Jan 2003 | B1 |
| D476892 | Martin et al. | Jul 2003 | S |
| 6830721 | Martin | Dec 2004 | B2 |
| D531035 | Pugne | Oct 2006 | S |
| D542132 | Pugne | May 2007 | S |
| D547184 | Kim et al. | Jul 2007 | S |
| D583234 | Lohrman et al. | Dec 2008 | S |
| D604159 | Pugne | Nov 2009 | S |
| 7628297 | Pugne | Dec 2009 | B2 |
| D609092 | Laib et al. | Feb 2010 | S |
| D609093 | Wisniewski et al. | Feb 2010 | S |
| 20090294447 | Mazurkiewicz et al. | Dec 2009 | A1 |
| 20100140266 | Lohrman et al. | Jun 2010 | A1 |