| Number | Date | Country | Kind |
|---|---|---|---|
| 2006-023364 | Sep 2006 | JP | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 5574443 | Hsieh | Nov 1996 | A |
| 5947440 | Cho | Sep 1999 | A |
| D425558 | Tarpenning et al. | May 2000 | S |
| 6175300 | Kendrick | Jan 2001 | B1 |
| D463432 | Bruckner | Sep 2002 | S |
| D533156 | Nakata | Dec 2006 | S |
| D536011 | Dayan | Jan 2007 | S |
| D536360 | Dayan | Feb 2007 | S |
| D545784 | Dayan | Jul 2007 | S |