| Number | Date | Country | Kind |
|---|---|---|---|
| 201930082910.2 | Mar 2019 | CN | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| D64772 | Swanberg | May 1924 | S |
| D64773 | Swanberg | May 1924 | S |
| D81748 | Kahn | Aug 1930 | S |
| D269189 | Sakaoka | May 1983 | S |
| D421053 | Izushima | Feb 2000 | S |
| D445830 | Yoon | Jul 2001 | S |
| D500792 | Bain | Jan 2005 | S |
| D531218 | Tatic | Oct 2006 | S |
| D641408 | Zhang | Jul 2011 | S |
| D654951 | Liang | Feb 2012 | S |
| D664196 | Buchler | Jul 2012 | S |
| D672815 | Li | Dec 2012 | S |
| D685427 | Liu | Jul 2013 | S |
| D689936 | Jiang | Sep 2013 | S |
| D697970 | Jin | Jan 2014 | S |
| D722646 | Wang | Feb 2015 | S |
| 9108456 | Ito | Aug 2015 | B2 |
| D758491 | Wang | Jun 2016 | S |
| D768777 | Matsumura | Oct 2016 | S |
| D839959 | Zhang | Feb 2019 | S |