Maohu CAI

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Patents Grantslast 30 patents

Information Patent Grant
Burner, gas water heater and processing method of fire row
- Patent number 10,823,399
- Issue date Nov 3, 2020
- A. O. Smith Corporation
- Yijun Xu
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Gas water heating apparatus
- Patent number 10,823,456
- Issue date Nov 3, 2020
- A. O. Smith Corporation
- Yijun Xu
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Ignition temperature control apparatus of gas water heater
- Patent number 10,514,184
- Issue date Dec 24, 2019
- A. O. Smith Corporation
- Bu Qiu
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Condensing gas water heater, condensing heat exchanger and heat exc...
- Patent number 10,451,312
- Issue date Oct 22, 2019
- A. O. Smith Corporation
- Maohu Cai
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Combustion control system of gas water heater or wall-hanging boile...
- Patent number 10,309,687
- Issue date Jun 4, 2019
- A. O. Smith Corporation
- Bu Qiu
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
GAS WATER HEATING APPARATUS
- Publication number 20180266727
- Publication date Sep 20, 2018
- A.O. SMITH (CHINA) WATER HEATER CO., LTD.
- Yijun Xu
- F24 - HEATING RANGES VENTILATING
Information Patent Application
BURNER, GAS WATER HEATER AND PROCESSING METHOD OF FIRE ROW
- Publication number 20180231244
- Publication date Aug 16, 2018
- A.O. SMITH (CHINA) WATER HEATER CO., LTD.
- Yijun XU
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
CONDENSING GAS WATER HEATER, CONDENSING HEAT EXCHANGER AND HEAT EXC...
- Publication number 20180031273
- Publication date Feb 1, 2018
- A.O. SMITH (CHINA) WATER HEATER CO., LTD.
- Maohu CAI
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
COMBUSTION CONTROL SYSTEM OF GAS WATER HEATER OR WALL-HANGING BOILE...
- Publication number 20170336099
- Publication date Nov 23, 2017
- A.O. SMITH (CHINA) WATER HEATER CO., LTD.
- Bu QIU
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
IGNITION TEMPERATURE CONTROL APPARATUS OF GAS WATER HEATER
- Publication number 20170307254
- Publication date Oct 26, 2017
- A.O.Smith(China)Water Heater Co., Ltd.
- Bu QIU
- F24 - HEATING RANGES VENTILATING