Inventor · disambiguated record
Hyeon Ho Chang
Also filed as: CHANG HYEON HO
2 granted patents·2 citations·filing 2019–2021
33Inventor score
Files withG&G TECH CO LTD2
Top patents by PatentIndex Score
2 records- 0176US12025350B2Geothermal system comprising multitube vertically-sealed underground heat-exchanger and method for installing sameG&G TECH CO LTD·Filed 2021·Granted Jul 2, 2024·2 cites·23 claims
- 0240US12085306B2Geothermal system using single water supply system for heating and cooling smart farm and building, and method for constructing geothermal systemG&G TECH CO LTD·Filed 2019·Granted Sep 10, 2024·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →