| Number | Name | Date | Kind |
|---|---|---|---|
| D255728 | Baron | Jul 1980 | |
| D341005 | Pratt | Nov 1993 | |
| D343480 | Levine | Jan 1994 | |
| D347301 | Levine | May 1994 | |
| D355052 | Paikos et al. | Jan 1995 | |
| D360284 | Paffett et al. | Jul 1995 | |
| D360285 | Paffett et al. | Jul 1995 | |
| D360286 | Paffett et al. | Jul 1995 | |
| D360287 | Paffett et al. | Jul 1995 | |
| D361163 | Chen | Aug 1995 |