| Number | Date | Country | Kind |
|---|---|---|---|
| 30-2013-0041223 | Aug 2013 | KR | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 5859594 | King et al. | Jan 1999 | A |
| 6977675 | Kotzin | Dec 2005 | B2 |
| D516083 | Kataoka | Feb 2006 | S |
| 7184802 | Chadha | Feb 2007 | B2 |
| D539305 | Kim et al. | Mar 2007 | S |
| 7281214 | Fadell | Oct 2007 | B2 |
| D555170 | Dai | Nov 2007 | S |
| D598426 | Kim et al. | Aug 2009 | S |
| 7856255 | Tsuchiya et al. | Dec 2010 | B2 |
| D638395 | Finnegan | May 2011 | S |
| D699701 | Kim | Feb 2014 | S |