Hyungsik Lee

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Port Washington, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Heating device having a secondary safety circuit for a fuel line an...
- Patent number 9,228,746
- Issue date Jan 5, 2016
- AOS Holding Company
- Dennis R. Hughes
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Water heater
- Patent number 8,161,918
- Issue date Apr 24, 2012
- AOS Holding Company
- Hongfei Ma
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Heating device having a thermal cut-off circuit for a fuel line and...
- Patent number 7,438,023
- Issue date Oct 21, 2008
- AOS Holding Company
- Hyungsik Lee
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Water heater with noise attenuation
- Patent number 7,316,206
- Issue date Jan 8, 2008
- AOS Holding Company
- Marc W. Akkala
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Gas heating device control
- Patent number 7,051,683
- Issue date May 30, 2006
- AOS Holding Company
- Hyungsik Lee
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

Patents Applicationslast 30 patents

Information Patent Application
WATER HEATER
- Publication number 20100043728
- Publication date Feb 25, 2010
- Hongfei Ma
- F24 - HEATING RANGES VENTILATING
Information Patent Application
WATER HEATER WITH HIGH EFFICIENCY BAFFLES
- Publication number 20090241858
- Publication date Oct 1, 2009
- AOS Holding Company
- Hyungsik Lee
- F24 - HEATING RANGES VENTILATING
Information Patent Application
HEATING DEVICE HAVING A THERMAL CUT-OFF CIRCUIT FOR A FUEL LINE AND...
- Publication number 20070284000
- Publication date Dec 13, 2007
- AOS Holding Company
- Hyungsik Lee
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
HEATING DEVICE HAVING A SECONDARY SAFETY CIRCUIT FOR A FUEL LINE AN...
- Publication number 20070281257
- Publication date Dec 6, 2007
- AOS Holding Company
- Dennis R. Hughes
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
Water heater with noise attenuation
- Publication number 20060237006
- Publication date Oct 26, 2006
- Marc W. Akkala
- F24 - HEATING RANGES VENTILATING