| Number | Date | Country | Kind |
|---|---|---|---|
| 202230214262.3 | Apr 2022 | CN | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3016586 | Atkins | Jan 1962 | A |
| 4717358 | Chaundy | Jan 1988 | A |
| 5114036 | Liu | May 1992 | A |
| D338614 | Pierce | Aug 1993 | S |
| D351825 | Sachs | Oct 1994 | S |
| D414400 | Williams | Sep 1999 | S |
| D420273 | Rich | Feb 2000 | S |
| D427888 | Hannon | Jul 2000 | S |
| D431999 | Haltof | Oct 2000 | S |
| D534064 | Gimpel | Dec 2006 | S |
| D580871 | McCarthy | Nov 2008 | S |
| D590702 | Giddings | Apr 2009 | S |
| D687384 | Kazakia | Aug 2013 | S |
| D701840 | Kazakia | Apr 2014 | S |
| D704147 | Huang | May 2014 | S |
| D712845 | Huang | Sep 2014 | S |
| D722029 | Hagarty | Feb 2015 | S |
| D813648 | Karol | Mar 2018 | S |
| D824748 | Needel | Aug 2018 | S |