Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11688863 | Fuel cell system | Song Ho Choi | 2023-06-27 |
| 10556190 | Apparatus for generating water vapor with heat-retaining medium and fuel cell system having the apparatus | Song Ho Choi | 2020-02-11 |