| Abstract | Description | Claims | Drawing | Search report | Cited references |
| US20060271149A | [0028] |
| US20060271153A | [0028] |
| US20090318947A | [0028] |
| US6679893B | [0028] [0030] |
| US20080269774A | [0028] [0030] |
| US20130304185A | [0028] |
| US8591566B | [0028] |
| US2011006021A | [0028] |
| US8632584B | [0028] |