Hyeon Ho CHANG

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Ansan-si, Gyeonggi-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Geothermal system using single water supply system for heating and...
- Patent number 12,085,306
- Issue date Sep 10, 2024
- G&G Technology Co., Ltd.
- Heuy Nam Cho
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Geothermal system comprising multitube vertically-sealed undergroun...
- Patent number 12,025,350
- Issue date Jul 2, 2024
- G&G Technology Co., Ltd.
- Heuy Nam Cho
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
GEOTHERMAL SYSTEM COMPRISING MULTITUBE VERTICALLY-SEALED UNDERGROUN...
- Publication number 20220397308
- Publication date Dec 15, 2022
- G&G Technology Co., Ltd.
- Heuy Nam CHO
- F24 - HEATING RANGES VENTILATING
Information Patent Application
GEOTHERMAL SYSTEM USING SINGLE WATER SUPPLY SYSTEM FOR HEATING AND...
- Publication number 20220018555
- Publication date Jan 20, 2022
- G&G Technology Co., Ltd.
- Heuy Nam CHO
- F24 - HEATING RANGES VENTILATING