| Number | Name | Date | Kind |
|---|---|---|---|
| D269543 | Walper et al. | Jun 1983 | |
| D300233 | Griffin | Mar 1989 | |
| D300647 | Griffin | Apr 1989 | |
| D325610 | Walker et al. | Apr 1992 | |
| 4509745 | Angsten | Apr 1985 | |
| 4511137 | Jones | Apr 1985 | |
| 4792135 | Chin-Sen | Dec 1988 | |
| 4900013 | Rodgers, Jr. | Feb 1990 | |
| 4902007 | Ferrari | Feb 1990 | |
| 5074551 | Olschansky et al. | Dec 1991 |