| Number | Name | Date | Kind |
|---|---|---|---|
| 2522120 | Kaskey et al. | Sep 1950 | A |
| D177472 | Huntington | Apr 1956 | S |
| 2765480 | Mueller | Oct 1956 | A |
| 2835905 | Tomasson | May 1958 | A |
| 2880428 | Forsland | Apr 1959 | A |
| 3124812 | Milton et al. | Mar 1964 | A |
| 3327330 | McCullough | Jun 1967 | A |
| 3757365 | Kretchmer | Sep 1973 | A |
| 4007503 | Watkin | Feb 1977 | A |
| 4060863 | Craig | Dec 1977 | A |
| 4118813 | Armstrong | Oct 1978 | A |
| 4173048 | Varaney | Nov 1979 | A |
| D258793 | Rinz | Apr 1981 | S |
| 4624021 | Hofstetter | Nov 1986 | A |
| D286965 | Eisler | Dec 1986 | S |
| D292767 | Challen | Nov 1987 | S |
| 4736477 | Moore | Apr 1988 | A |
| 4773142 | Davis et al. | Sep 1988 | A |
| D309689 | Bool | Aug 1990 | S |
| D314685 | Hudson | Feb 1991 | S |
| 4998309 | Tesch | Mar 1991 | A |
| D316354 | Bool | Apr 1991 | S |
| D322533 | Hudson | Dec 1991 | S |
| 5148564 | Reder | Sep 1992 | A |
| D346926 | Sullivan | May 1994 | S |
| D354876 | Pace | Jan 1995 | S |
| D388650 | Davis | Jan 1998 | S |
| D395568 | Davis | Jun 1998 | S |
| D399675 | Ferris | Oct 1998 | S |
| D412259 | Wilcox et al. | Jul 1999 | S |
| D418711 | Mettler | Jan 2000 | S |
| D456659 | Landvik | May 2002 | S |
| D456660 | Landvik | May 2002 | S |
| 6438779 | Brown | Aug 2002 | B1 |
| 6574809 | Rathbun | Jun 2003 | B1 |
| 6578218 | Wassilefsky | Jun 2003 | B2 |
| D481242 | Peterson | Oct 2003 | S |
| 6742207 | Brown | Jun 2004 | B1 |
| D492874 | Fux et al. | Jul 2004 | S |
| 6915539 | Rathbun | Jul 2005 | B2 |
| D513571 | Haack | Jan 2006 | S |
| 7051389 | Wassilefky | May 2006 | B2 |
| 7082633 | Maarbjerg | Aug 2006 | B1 |
| D529325 | Maarbjerg | Oct 2006 | S |
| D542071 | Chan | May 2007 | S |
| 7530127 | Leifermann et al. | May 2009 | B2 |
| 7594289 | Medlock | Sep 2009 | B1 |
| 20030188383 | Ense | Oct 2003 | A1 |
| 20030208846 | Guarino | Nov 2003 | A1 |
| 20040107501 | Kancilja | Jun 2004 | A1 |
| 20050144725 | Guarino | Jul 2005 | A1 |
| 20060064819 | Mollett | Mar 2006 | A1 |
| 20070245493 | Leifermann et al. | Oct 2007 | A1 |
| 20090139034 | Maarbjerg | Jun 2009 | A1 |