Number | Name | Date | Kind |
---|---|---|---|
D195583 | Philips | Jul 1963 | S |
3862411 | Persson | Jan 1975 | A |
D358902 | Webster, III | May 1995 | S |
D389262 | Compton | Jan 1998 | S |
6784357 | Wang | Aug 2004 | B1 |
7044617 | Maxwell et al. | May 2006 | B2 |
D542958 | Lodhie et al. | May 2007 | S |