Yanli DUAN

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Jiangsu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Gas mixing device and gas water heating device
- Patent number 11,808,453
- Issue date Nov 7, 2023
- A. O. Smith Corporation
- Yanli Duan
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

Patents Applicationslast 30 patents

Information Patent Application
GAS MIXING DEVICE AND GAS WATER HEATING DEVICE
- Publication number 20220228743
- Publication date Jul 21, 2022
- A.O. SMITH (CHINA) WATER HEATER CO., LTD.
- Yanli DUAN
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES