| Number | Name | Date | Kind |
|---|---|---|---|
| D204674 | Trimble | May 1966 | S |
| D241341 | Oxley | Sep 1976 | S |
| D278230 | Kominiak et al. | Apr 1985 | S |
| 5591366 | Schmidt et al. | Jan 1997 | A |
| 6256881 | Starkey | Jul 2001 | B1 |
| 6325615 | Johnson et al. | Dec 2001 | B1 |
| D473524 | Koehler | Apr 2003 | S |
| D524738 | Dobler | Jul 2006 | S |
| D528506 | Taguchi | Sep 2006 | S |
| D546769 | Sengupta et al. | Jul 2007 | S |
| D597947 | Ono | Aug 2009 | S |
| Number | Date | Country |
|---|---|---|
| 2007036017 | Apr 2007 | WO |
| 2007036018 | Apr 2007 | WO |