| Number | Name | Date | Kind |
|---|---|---|---|
| D321820 | Russell | Nov 1991 | |
| D333604 | Thompson et al. | Mar 1993 | |
| D366408 | Sessions et al. | Jan 1996 | |
| D367599 | Sakai | Mar 1996 | |
| D375242 | Seber et al. | Nov 1996 | |
| D379294 | Lun | May 1997 | |
| D379579 | Pohl | Jun 1997 | |
| D382189 | Viele | Aug 1997 | |
| D384871 | McWillis | Oct 1997 | |
| D389389 | Glesser | Jan 1998 |