| Number | Name | Date | Kind |
|---|---|---|---|
| D294239 | Graas | Feb 1988 | |
| D306844 | Wallet | Mar 1990 | |
| D328580 | Killian | Aug 1992 | |
| D332767 | Tsuda et al. | Jan 1993 | |
| D335115 | Suzuki | Apr 1993 | |
| D335840 | Guspodin | May 1993 | |
| D346774 | Brayer et al. | May 1994 | |
| D347412 | Croyle | May 1994 | |
| 4690189 | Bradisse et al. | Sep 1987 |