| Number | Name | Date | Kind |
|---|---|---|---|
| D250719 | Jacobson et al. | Jan 1979 | S |
| D269205 | Langer et al. | May 1983 | S |
| D280930 | Speicher et al. | Oct 1985 | S |
| D316145 | Ware | Apr 1991 | S |
| 5107836 | Fenster | Apr 1992 | A |
| 5144946 | Weinberg et al. | Sep 1992 | A |
| D337820 | Hooper et al. | Jul 1993 | S |
| D338731 | Byland et al. | Aug 1993 | S |
| D343901 | Anderson | Feb 1994 | S |
| D478990 | Kroll | Aug 2003 | S |
| D523144 | Wenger et al. | Jun 2006 | S |