Lei ZHENG

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CHANGZHOU, CN

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Patents Grantslast 30 patents

Information Patent Grant
Spiral finned condenser
- Patent number 10,746,472
- Issue date Aug 18, 2020
- Lei Zheng
- F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
SPIRAL FINNED CONDENSER
- Publication number 20190017746
- Publication date Jan 17, 2019
- CHANGZHOU CHANGZHENG HECHANGER TECHNOLOGY CO. LTD.
- Lei ZHENG
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
FIN HEAT EXCHANGER FOR CLOTHES WASHING MACHINE OR CLOTHES DRYER, AN...
- Publication number 20180335260
- Publication date Nov 22, 2018
- CHANGZHOU CHANGZHENG EVAPORATOR CO., LTD
- Weiguo HONG
- F28 - HEAT EXCHANGE IN GENERAL