| Number | Name | Date | Kind |
|---|---|---|---|
| D220448 | Swett et al. | Apr 1971 | S |
| D235406 | Daenen | Jun 1975 | S |
| D248357 | Daenen | Jul 1978 | S |
| D272029 | Grusin | Jan 1984 | S |
| D276400 | Daenen et al. | Nov 1984 | S |
| D279952 | Daenen et al. | Aug 1985 | S |
| D280964 | Wolff | Oct 1985 | S |
| D281048 | Wolff | Oct 1985 | S |
| D282808 | Daenen et al. | Mar 1986 | S |
| D282809 | Daenen et al. | Mar 1986 | S |
| D287559 | Daenen et al. | Jan 1987 | S |
| D289844 | Daenen et al. | May 1987 | S |
| D316513 | Wolff | Apr 1991 | S |
| D319978 | Wolff | Sep 1991 | S |
| 5223291 | Levinson et al. | Jun 1993 | A |
| D348377 | Douglas | Jul 1994 | S |
| D378039 | Ferris | Feb 1997 | S |
| D383671 | Phillips | Sep 1997 | S |
| D417367 | Laib | Dec 1999 | S |
| D423283 | Laib | Apr 2000 | S |
| D424298 | Laib | May 2000 | S |
| D437686 | Balzar et al. | Feb 2001 | S |
| D469320 | Pettaweebuncha | Jan 2003 | S |
| D489975 | Jackson et al. | May 2004 | S |
| D502394 | Jackson et al. | Mar 2005 | S |
| D503336 | Tucker et al. | Mar 2005 | S |
| D559042 | de Groote et al. | Jan 2008 | S |
| D587567 | Peyser et al. | Mar 2009 | S |
| D614919 | Carlson | May 2010 | S |
| 20030068411 | McCallister et al. | Apr 2003 | A1 |
| 20080105674 | Hsu | May 2008 | A1 |
| 20100108668 | McMahan | May 2010 | A1 |
| Number | Date | Country |
|---|---|---|
| 0 954 981 | Nov 1999 | EP |
| 1 046 346 | Oct 2000 | EP |
| 2005270485 | Oct 2005 | JP |
| 2006034665 | Feb 2006 | JP |
| 2006095063 | Apr 2006 | JP |