| Number | Name | Date | Kind |
|---|---|---|---|
| D217282 | Quercia | Apr 1970 | |
| D257519 | Plozner | Nov 1980 | |
| D270028 | Vernin | Aug 1983 | |
| D276016 | Ferrin | Oct 1984 | |
| D289126 | Holcomb et al. | Apr 1987 | |
| D370160 | Holcomb et al. | May 1996 | |
| 2480271 | Sumner | Aug 1949 | |
| 4374574 | David | Feb 1983 | |
| 4573244 | Holcomb et al. | Mar 1986 | |
| 4697749 | Holcomb et al. | Oct 1987 | |
| 5082190 | Chen | Jan 1992 |