| Number | Date | Country | Kind |
|---|---|---|---|
| 30-2012-0009746 | Feb 2012 | KR | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 2019728 | Ranck | Nov 1935 | A |
| 2953394 | Anderson | Sep 1960 | A |
| 3537726 | Conover | Nov 1970 | A |
| 3622179 | Pfersick | Nov 1971 | A |
| 3777835 | Bourne | Dec 1973 | A |
| 3779201 | Spahn | Dec 1973 | A |
| 4302006 | Johnson | Nov 1981 | A |
| 5792031 | Alton | Aug 1998 | A |
| 6074305 | Schnapp | Jun 2000 | A |
| 6500097 | Hall | Dec 2002 | B1 |
| 6740009 | Hall | May 2004 | B1 |
| 20020187880 | Johnson | Dec 2002 | A1 |
| 20080141946 | Kalani | Jun 2008 | A1 |