| Number | Name | Date | Kind |
|---|---|---|---|
| D318850 | Matsumoto et al. | Aug 1991 | S |
| 5414395 | Garnto et al. | May 1995 | A |
| D409569 | Francis | May 1999 | S |
| D573090 | Savolainen et al. | Jul 2008 | S |
| D585838 | Tiedemann et al. | Feb 2009 | S |
| D605143 | Von Arx et al. | Dec 2009 | S |
| 7632159 | Nelson | Dec 2009 | B2 |