| Number | Date | Country | Kind |
|---|---|---|---|
| 2005-018799 | Jun 2005 | JP | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3246778 | Kampert et al. | Apr 1966 | A |
| D211522 | Renquist | Jun 1968 | S |
| RE26635 | Kumpert et al. | Jul 1969 | E |
| 3601212 | Peterson et al. | Aug 1971 | A |
| D226707 | Skyer et al. | Apr 1973 | S |
| D245503 | Adams et al. | Aug 1977 | S |
| 4085815 | Miller | Apr 1978 | A |
| 4240648 | Starr | Dec 1980 | A |
| 4379568 | Kerkman | Apr 1983 | A |
| D326858 | Skeel et al. | Jun 1992 | S |
| 5199196 | Straley | Apr 1993 | A |
| D358157 | Kusunoki et al. | May 1995 | S |
| D364408 | Bryant et al. | Nov 1995 | S |
| D405807 | Amy et al. | Feb 1999 | S |
| D410930 | Kim et al. | Jun 1999 | S |
| D412506 | Boyer et al. | Aug 1999 | S |
| D419618 | Park | Jan 2000 | S |
| D441038 | Wei | Apr 2001 | S |