| Number | Name | Date | Kind |
|---|---|---|---|
| D253176 | Schuman et al. | Dec 1979 | |
| D306916 | Wasserman | Mar 1990 | |
| 2308162 | Frank | Jan 1943 | |
| 2367571 | Gaide | Jan 1945 | |
| 2458417 | Pollifrone | Jan 1949 | |
| 2710445 | Fitzpatrick, Jr. | Jun 1955 | |
| 3552005 | Fischer | Jan 1971 | |
| 4272886 | Asano | Jun 1981 | |
| 4587729 | Jacobson | May 1986 | |
| 5050301 | Apprille, Jr. | Sep 1991 |