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Dongfang ZHAO
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Qingdao, CN
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last 30 patents
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Patent Application
AIR CONDITIONER
Publication number
20240060659
Publication date
Feb 22, 2024
Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd.
Dongfang ZHAO
F24 - HEATING RANGES VENTILATING
Information
Patent Application
AIR SOURCE HEAT PUMP SYSTEM AND DEFROSTING CONTROL METHOD THEREOF
Publication number
20230132393
Publication date
Apr 27, 2023
Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd.
Dongfang ZHAO
F24 - HEATING RANGES VENTILATING
Information
Patent Application
AIR SOURCE HEAT PUMP SYSTEM AND DEFROSTING CONTROL METHOD THEREOF
Publication number
20220120472
Publication date
Apr 21, 2022
Qingdao Hisense Hitachi Air-Conditioning Systems Co., Ltd.
Dongfang ZHAO
F24 - HEATING RANGES VENTILATING