| Number | Date | Country | Kind |
|---|---|---|---|
| 001650896 | Dec 2009 | EM | regional |
| 40 2010 001 119 | Feb 2010 | DE | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 6540476 | Huang et al. | Apr 2003 | B2 |
| D530006 | Li et al. | Oct 2006 | S |
| D539408 | Wu et al. | Mar 2007 | S |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 29364130 | Jun 2010 | US |
| Child | 29386986 | US |