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The ornamental design for an air purifier, as shown and described.
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1. Air purifier
| Patent | Priority | Assignee | Title |
| D941981, | Jun 12 2019 | BLUEAIR AB | Purifier |
| D947336, | Apr 13 2018 | BLUEAIR AB | Air treatment device |
| D962407, | Mar 26 2020 | Samsung Electronics Co., Ltd. | Air purifier |
| D969288, | Jan 25 2021 | Air purifier | |
| D986398, | Jul 20 2021 | Shenzhen Airtok Technology Co., Ltd. | Air cleaner |
| D989264, | Sep 30 2020 | FOSHAN SAMYOO ELECTRONIC CO., LTD. | Air purifier |
| D989930, | Sep 30 2020 | FOSHAN SAMYOO ELECTRONIC CO., LTD. | Air purifier |
| ER5009, | |||
| ER5526, | |||
| ER6783, | |||
| ER7055, | |||
| ER9556, | |||
| ER9663, |
| Patent | Priority | Assignee | Title |
| D807997, | Feb 11 2016 | COWAY CO , LTD | Air purifier |
| D810259, | Jan 08 2016 | Samsung Electronics Co., Ltd. | Air purifier |
| D834165, | Apr 26 2017 | Coway Co., Ltd.; COWAY CO , LTD | Air purifier |
| D835248, | Sep 06 2017 | 3M Innovative Properties Company | Air purifier |
| D841783, | Mar 15 2016 | VERSUNI HOLDING B V | Air purifier |
| D844766, | Jan 12 2018 | 3M Innovative Properties Company | Air purifier |
| D862673, | Jun 14 2018 | 3M Innovative Properties Company | Air purifier |
| D876598, | Dec 27 2017 | BEIJING XIAOMI MOBILE SOFTWARE CO., LTD. | Humidifier |
| D876599, | Jul 09 2018 | GUANGDONG WAPU TECHNOLOGY CO., LTD. | Vertical air purifier |
| D882743, | Feb 28 2018 | GD MIDEA AIR-CONDITIONING EQUIPMENT CO , LTD ; MIDEA GROUP CO , LTD | Air conditioner |
| D889621, | Oct 29 2018 | Hung Hsing Electric Co., Ltd.; HUNG HSING ELECTRIC CO , LTD | Air purifier |
| D890904, | Feb 28 2019 | Lasko Operation Holdings, LLC | Air purifier |
| D905840, | Aug 12 2020 | SHENZHENSHI YITENG TECHNOLOGY CO , LTD | Air purifier |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 10 2019 | MIDEA GROUP CO., LTD. | (assignment on the face of the patent) | / | |||
| Jun 18 2020 | CHEN, WEI | MIDEA GROUP CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 053092 | /0596 |
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