Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162739 | Air-conditioning apparatus using heat pipe | Keunho Ryu, Jeongbeom Ko, Byoung Nam Choi, Chang Dae Lee, Deok Soo Jung | 2021-11-02 |
| 10982874 | Heat pipe air-conditioning apparatus using bypass passage | Keunho Ryu, Jeongbeom Ko, Byoung Nam Choi, Chang Dae Lee, Deok Soo Jung | 2021-04-20 |