Inventor

HU CHANG HEOI

KR3 patents

Patents

3 patents

US11473787B2Oct 18, 2022

Boiler for heating and hot-water control method therefor

KYUNGDONG NAVIEN CO LTD3 citations68

US11149870B2Oct 19, 2021

Recirculation valve and hot water recirculation system using the same

KYUNGDONG NAVIEN CO LTD0 citations45

US11835242B2Dec 5, 2023

Hot water supplying apparatus and method for utilizing waste heat of hot water supplying apparatus

KYUNGDONG NAVIEN CO LTD0 citations42