| Number | Name | Date | Kind |
|---|---|---|---|
| D266309 | Linden | Sep 1982 | S |
| 4715122 | Linden | Dec 1987 | A |
| D301678 | Linden | Jun 1989 | S |
| D318780 | Bendickson et al. | Aug 1991 | S |
| D338604 | Ramsey | Aug 1993 | S |
| D344225 | Hendon et al. | Feb 1994 | S |
| 5325592 | Linden et al. | Jul 1994 | A |
| D350466 | Ramsey et al. | Sep 1994 | S |
| D353087 | Ramsey et al. | Dec 1994 | S |
| D354423 | Birkholz | Jan 1995 | S |
| D358748 | Ramsey et al. | May 1995 | S |
| D361026 | Ramsey | Aug 1995 | S |
| D365004 | Ramsey et al. | Dec 1995 | S |
| D365005 | Birkholz | Dec 1995 | S |
| D380657 | Cornell | Jul 1997 | S |
| D383958 | An et al. | Sep 1997 | S |
| D387647 | Linden | Dec 1997 | S |
| D393192 | Cornell | Apr 1998 | S |
| D393193 | Schneider et al. | Apr 1998 | S |
| D395992 | Bennett et al. | Jul 1998 | S |
| D421375 | Carlson et al. | Mar 2000 | S |
| 6493947 | Stokes | Dec 2002 | B2 |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 29209329 | Jul 2004 | US |
| Child | 29265286 | US |