Defu Gao

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Foshan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Three-pipe multi-split air-conditioning system and control method t...
- Patent number 12,158,283
- Issue date Dec 3, 2024
- GUANGDONG GIWEE TECHNOLOGY CO. LTD.
- Xiangshi Mai
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Multi-outdoor unit parallel type non-reversing defrosting system an...
- Patent number 11,994,324
- Issue date May 28, 2024
- GUANGDONG GIWEE TECHNOLOGY CO. LTD.
- Yantu Yang
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Three-pipe multi-split system and control method thereof
- Patent number 11,913,704
- Issue date Feb 27, 2024
- GUANGDONG GIWEE TECHNOLOGY CO. LTD.
- Xiangshi Mai
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Grant
Non-stop defrosting multi-connected hot water system and control me...
- Patent number 11,867,441
- Issue date Jan 9, 2024
- GUANGDONG GIWEE TECHNOLOGY CO. LTD.
- Xiangshi Mai
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...

Patents Applicationslast 30 patents

Information Patent Application
THREE-PIPE MULTI-SPLIT AIR CONDITIONING SYSTEM AND CONTROL METHOD T...
- Publication number 20220333843
- Publication date Oct 20, 2022
- Guangdong Giwee Technology Co. Ltd.
- Xiangshi Mai
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
THREE-PIPE MULTI-SPLIT SYSTEM AND CONTROL METHOD THEREOF
- Publication number 20220333836
- Publication date Oct 20, 2022
- Guangdong Giwee Technology Co. Ltd.
- Xiangshi Mai
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
MULTI-OUTDOOR UNIT PARALLEL TYPE NON-REVERSING DEFROSTING SYSTEM AN...
- Publication number 20220333837
- Publication date Oct 20, 2022
- Guangdong Giwee Technology Co. Ltd.
- Yantu Yang
- F24 - HEATING RANGES VENTILATING
Information Patent Application
NON-STOP DEFROSTING MULTI-CONNECTED HOT WATER SYSTEM AND CONTROL ME...
- Publication number 20220235983
- Publication date Jul 28, 2022
- Guangdong Giwee Technology Co. Ltd.
- Xiangshi Mai
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information Patent Application
THREE-PIPE MULTI-SPLIT AIR-CONDITIONING SYSTEM AND CONTROL METHOD T...
- Publication number 20220196259
- Publication date Jun 23, 2022
- Guangdong Giwee Technology Co., Ltd.
- Xiangshi Mai
- F24 - HEATING RANGES VENTILATING