| Number | Name | Date | Kind |
|---|---|---|---|
| 750735 | Turck | Jan 1904 | A |
| 1206324 | Hart | Nov 1916 | A |
| 3401687 | Hood | Sep 1968 | A |
| 3504665 | Bakunin et al. | Apr 1970 | A |
| 3636945 | Sato | Jan 1972 | A |
| D234543 | Foster | Mar 1975 | S |
| 3878838 | Lunn | Apr 1975 | A |
| 3996930 | Sekulich | Dec 1976 | A |
| 4002164 | Bradley | Jan 1977 | A |
| 4059100 | Glage | Nov 1977 | A |
| 4334527 | Clinton | Jun 1982 | A |
| 4542753 | Brenman et al. | Sep 1985 | A |
| 4574791 | Mitchener | Mar 1986 | A |
| 4663102 | Brenman et al. | May 1987 | A |
| 4878489 | Kamayachi | Nov 1989 | A |
| 5074315 | McCuiston | Dec 1991 | A |
| 5377702 | Sakurai | Jan 1995 | A |
| D371442 | Semyonova | Jul 1996 | S |
| D384156 | Kain | Sep 1997 | S |
| D386879 | Daniels | Nov 1997 | S |
| 5690603 | Kain | Nov 1997 | A |
| 5707341 | Mathewuse | Jan 1998 | A |
| 5853362 | Jacobs | Dec 1998 | A |
| 5876324 | Trouchine | Mar 1999 | A |
| D461009 | Viner | Jul 2002 | S |
| 6776755 | Raskin | Aug 2004 | B1 |
| D501048 | Hacker | Jan 2005 | S |
| 6976970 | Siddhartha | Dec 2005 | B2 |
| D517217 | Zou et al. | Mar 2006 | S |
| 7081087 | Jannuzzi | Jul 2006 | B2 |
| 7122015 | Luettgen et al. | Oct 2006 | B2 |
| D558356 | Nan | Dec 2007 | S |
| 7341566 | Nan | Mar 2008 | B2 |
| D568490 | Nan | May 2008 | S |
| 20040230093 | Marshall | Nov 2004 | A1 |
| 20060069329 | Nan | Mar 2006 | A1 |
| 20060069330 | Nan | Mar 2006 | A1 |
| 20060094992 | Imboden et al. | May 2006 | A1 |
| 20060106327 | Thielen | May 2006 | A1 |
| 20070142754 | Nan | Jun 2007 | A1 |
| 20070149903 | Nan | Jun 2007 | A1 |
| 20070287610 | Novak et al. | Dec 2007 | A1 |
| 20080009775 | Murison | Jan 2008 | A1 |
| 20080027362 | Fretz | Jan 2008 | A1 |
| 20080027364 | Moutray | Jan 2008 | A1 |
| 20080091128 | Nan | Apr 2008 | A1 |
| 20080139980 | Fladl et al. | Jun 2008 | A1 |
| Number | Date | Country |
|---|---|---|
| 417438 | Mar 1991 | EP |
| 2439927 | Jan 2008 | GB |