| Number | Name | Date | Kind |
|---|---|---|---|
| 3807150 | Maracle | Apr 1974 | |
| 3878594 | Minor, Jr. et al. | Apr 1975 | |
| 3966646 | Noakes et al. | Jun 1976 | |
| 4289513 | Brownhill et al. | Sep 1981 | |
| 4322231 | Hilzendeger et al. | Mar 1982 | |
| 4410427 | Wydeven | Oct 1983 | |
| 4430223 | Miyakawa et al. | Feb 1984 | |
| 4439231 | Taki et al. | Mar 1984 | |
| 4589983 | Wydevan | May 1986 | |
| 5102436 | Grabowski | Apr 1992 | |
| 5304351 | Tanaka et al. | Apr 1994 |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 053682 | Apr 1996 |