| Number | Name | Date | Kind |
|---|---|---|---|
| D341078 | Saavedra | Nov 1993 | |
| D393201 | Hearidge et al. | Apr 1998 | |
| 4970053 | Fechtner | Nov 1990 | |
| 5005721 | Jordan | Apr 1991 | |
| 5145646 | Tyranski | Sep 1992 | |
| 5294404 | Grandone et al. | Mar 1994 | |
| 5322668 | Tomasso | Jun 1994 | |
| 5501982 | Saldivar, Jr. et al. | Mar 1996 | |
| 5578272 | Koch et al. | Nov 1996 |