| Number | Name | Date | Kind |
|---|---|---|---|
| 1599460 | Craze | Sep 1926 | |
| 4090717 | Rossetti | May 1978 | |
| 4506913 | Kim | Mar 1985 | |
| 4586707 | McNeight et al. | May 1986 | |
| 4619457 | Small | Oct 1986 | |
| 4657248 | Benaim | Apr 1987 | |
| 4736954 | Haney et al. | Apr 1988 | |
| 4966366 | Mercado-Torres | Oct 1990 | |
| 5018975 | Todd | May 1991 |
| Entry |
|---|
| Washington Post, Mar. 14, 1991 edition "Classified Quest". |