Yonghua Cheng

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Fergus, CA

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Patents Grantslast 30 patents

Information Patent Grant
Water heater having highly efficient and compact heat exchanger
- Patent number 11,761,677
- Issue date Sep 19, 2023
- A. O. Smith Corporation
- Ziwen Fu
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Low NOx burner for a water heater
- Patent number 9,587,854
- Issue date Mar 7, 2017
- A. O. Smith Corporation
- Yonghua Cheng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Low NOx burner for a water heater
- Patent number 9,212,817
- Issue date Dec 15, 2015
- A. O. Smith Corporation
- Yonghua Cheng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Water heater and method of operating
- Patent number 8,763,564
- Issue date Jul 1, 2014
- A. O. Smith Corporation
- Ayman Abdel-Rehim
- F28 - HEAT EXCHANGE IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
WATER HEATER HAVING HIGHLY EFFICIENT AND COMPACT HEAT EXCHANGER
- Publication number 20230026841
- Publication date Jan 26, 2023
- A.O. Smith Corporation
- Ziwen Fu
- F24 - HEATING RANGES VENTILATING
Information Patent Application
LOW NOX BURNER FOR A WATER HEATER
- Publication number 20160061491
- Publication date Mar 3, 2016
- A.O. Smith Corporation
- Yonghua Cheng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
LOW NOX BURNER FOR A WATER HEATER
- Publication number 20130247844
- Publication date Sep 26, 2013
- A.O. Smith Corporation
- Yonghua Cheng
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
WATER HEATER AND METHOD OF OPERATING
- Publication number 20130112155
- Publication date May 9, 2013
- Ayman Abdel-Rehim
- F28 - HEAT EXCHANGE IN GENERAL