Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12085306 | Geothermal system using single water supply system for heating and cooling smart farm and building, and method for constructing geothermal system | Heuy Nam Cho, Hyeon Ho Chang, Sung Ouk Choi | 2024-09-10 |
| 10895056 | Shielding apparatus for high-depth groundwater well pollution prevention grouting | Sung Ouk Choi, Heuy Nam Cho | 2021-01-19 |