| Number | Name | Date | Kind |
|---|---|---|---|
| D307517 | Mallory et al. | May 1990 | |
| D321793 | Bryant | Nov 1991 | |
| D331151 | Kiefer | Nov 1992 | |
| 2101769 | Westmoreland | Dec 1937 | |
| 2300192 | Allen | Oct 1942 | |
| 2561025 | Febvre | Jul 1951 | |
| 2789298 | Peterson | Apr 1957 | |
| 2855618 | Jones | Oct 1958 | |
| 2973535 | Olay | Mar 1961 | |
| 2989766 | Hoag | Jun 1961 | |
| 3086236 | Anonsen | Apr 1963 | |
| 3129944 | Amos et al. | Apr 1964 | |
| 5182830 | Viola | Feb 1993 | |
| 5549413 | Bolden | Aug 1996 | |
| 5621940 | Lewis et al. | Apr 1997 |