Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7441586 | Heat exchange apparatus and ventilation system using the same | Geon-Soo Han | 2008-10-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7441586 | Heat exchange apparatus and ventilation system using the same | Geon-Soo Han | 2008-10-28 |