| Number | Date | Country | Kind |
|---|---|---|---|
| D200911104 | Apr 2009 | AU | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 194329 | Buhrer | Aug 1877 | A |
| 803979 | Bonnell | Nov 1905 | A |
| 2352642 | Langdon | Jul 1944 | A |
| 3118468 | Bochan | Jan 1964 | A |
| 3463159 | Heimlich | Aug 1969 | A |
| 3707986 | Breen | Jan 1973 | A |
| 4084606 | Mittleman | Apr 1978 | A |
| 4227533 | Godfrey | Oct 1980 | A |
| D279922 | Bova | Jul 1985 | S |
| 4870992 | Irwin et al. | Oct 1989 | A |
| 5398853 | Latham | Mar 1995 | A |
| 5881772 | Bennett | Mar 1999 | A |
| 6136253 | Bennett | Oct 2000 | A |
| 6305420 | Atkinson et al. | Oct 2001 | B1 |
| 6481464 | Katayama et al. | Nov 2002 | B1 |
| 6795987 | Cornwall | Sep 2004 | B2 |
| 7243681 | Dahm | Jul 2007 | B2 |
| 7422034 | Dahm | Sep 2008 | B2 |
| 7530369 | Anderson | May 2009 | B2 |
| 20050263195 | Dahm | Dec 2005 | A1 |
| Number | Date | Country |
|---|---|---|
| 2005202307 | Dec 2006 | AU |
| 2450304 | Dec 2002 | CA |
| 2429950 | Mar 2004 | CA |
| 1174549 | Jan 2002 | EP |
| 1785077 | May 2007 | EP |
| 2896292 | Jul 2007 | FR |
| 2296309 | Jun 1996 | GB |
| 23252497 | Jan 2001 | GB |
| 11172736 | Jun 1999 | JP |
| 2004124531 | Apr 2004 | JP |
| 2004197452 | Jul 2004 | JP |
| 2008013948 | Jan 2008 | JP |
| WO2004059198 | Jul 2004 | WO |
| WO2006005244 | Jan 2006 | WO |
| WO2007021049 | Feb 2007 | WO |