Number | Name | Date | Kind |
---|---|---|---|
D229391 | Nelms | Nov 1973 | S |
4134206 | Beermann | Jan 1979 | A |
D320150 | Huang | Sep 1991 | S |
D323967 | Talbot | Feb 1992 | S |
5737842 | Freedman | Apr 1998 | A |
D401492 | Joseph, Jr. | Nov 1998 | S |
6513249 | Linton et al. | Feb 2003 | B2 |
6691416 | Yu Chen | Feb 2004 | B2 |
D573436 | Wu | Jul 2008 | S |
D575613 | Jennings | Aug 2008 | S |
D673440 | Kempker et al. | Jan 2013 | S |