| Number | Name | Date | Kind |
|---|---|---|---|
| D287635 | Walus | Jan 1987 | |
| D290095 | Montalbano et al. | Jun 1987 | |
| D290751 | Montalbano et al. | Jul 1987 | |
| D323561 | Bartelt et al. | Jan 1992 | |
| D382345 | Minogue | Aug 1997 | |
| D383212 | Okabe | Sep 1997 | |
| D400262 | Hirakawa et al. | Oct 1998 | |
| D412364 | Agarwala | Jul 1999 | |
| 4789368 | D'Onofrio | Dec 1988 | |
| 4989605 | Rossen | Feb 1991 | |
| 5048523 | Yamasawa et al. | Sep 1991 |