| Number | Date | Country | Kind |
|---|---|---|---|
| 2012 3 0078299 | Mar 2012 | CN | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 4380337 | DiMatteo | Apr 1983 | A |
| 4822052 | Dimmick et al. | Apr 1989 | A |
| 4858925 | DeStefano, Jr. | Aug 1989 | A |
| 4957293 | Byrd | Sep 1990 | A |
| D318704 | Cevert | Jul 1991 | S |
| D319278 | Tosti | Aug 1991 | S |
| D633966 | Savarese et al. | Mar 2011 | S |
| D659787 | Balareta et al. | May 2012 | S |
| D668728 | Savarese et al. | Oct 2012 | S |
| D670778 | Savarese et al. | Nov 2012 | S |