| Number | Name | Date | Kind |
|---|---|---|---|
| D591732 | Burton | May 2009 | S |
| D674491 | Bailey et al. | Jan 2013 | S |
| D681212 | Larsen et al. | Apr 2013 | S |
| 20050238192 | Ford et al. | Oct 2005 | A1 |
| 20120219168 | Zhao et al. | Aug 2012 | A1 |
| 20120257774 | Larsen et al. | Oct 2012 | A1 |
| 20140153762 | Shennib et al. | Jun 2014 | A1 |