| Number | Date | Country | Kind |
|---|---|---|---|
| 2013 3 0615496 | Dec 2013 | CN | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 4020245 | Mabuchi et al. | Apr 1977 | A |
| D361980 | Chen | Sep 1995 | S |
| D376579 | Bunyea et al. | Dec 1996 | S |
| 6531244 | Ryan et al. | Mar 2003 | B1 |
| D508237 | Shing | Aug 2005 | S |
| D528070 | Tang | Sep 2006 | S |
| D528503 | Tang | Sep 2006 | S |
| D528974 | Tang | Sep 2006 | S |
| D535945 | Towler | Jan 2007 | S |
| D539217 | Hamaguchi | Mar 2007 | S |
| D541213 | Tang | Apr 2007 | S |
| D577333 | Daniel et al. | Sep 2008 | S |
| D637156 | Yoon | May 2011 | S |
| D664092 | Gea Suarez | Jul 2012 | S |
| D664498 | Liu | Jul 2012 | S |
| D710305 | Windom | Aug 2014 | S |