| Number | Name | Date | Kind |
|---|---|---|---|
| D188502 | Metzler et al. | Aug 1960 | S |
| D263668 | Knutson | Apr 1982 | S |
| D278588 | Knutson | Apr 1985 | S |
| D280482 | Knutson | Sep 1985 | S |
| D291042 | Fahey et al. | Jul 1987 | S |
| D364537 | Anderson | Nov 1995 | S |
| D380648 | Rider et al. | Jul 1997 | S |
| D419383 | Wellner | Jan 2000 | S |
| D440016 | Thorpe | Apr 2001 | S |
| D483025 | Heath | Dec 2003 | S |
| D483999 | Beachum et al. | Dec 2003 | S |
| D484747 | McMahon, III | Jan 2004 | S |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 29240291 | Oct 2005 | US |
| Child | 29261428 | US |