| Number | Name | Date | Kind |
|---|---|---|---|
| D212480 | Mead | Oct 1968 | |
| D273565 | Driskell et al. | Apr 1984 | |
| D273765 | Cillario | May 1984 | |
| D276215 | Wang | Nov 1984 | |
| D279865 | McKee | Jul 1985 | |
| D287105 | Osterhout | Dec 1986 | |
| D299085 | Martinez | Dec 1988 | |
| D305478 | Lahm et al. | Jan 1990 | |
| D342025 | Abraben et al. | Dec 1993 | |
| 4415076 | Campbell | Nov 1983 | |
| 4691820 | Martinez | Sep 1987 | |
| 5042655 | Beldyk et al. | Aug 1991 | |
| 5168993 | Yen | Dec 1992 |