Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11137148 | Air conditioner | Sun Muk Choi, Je-Gu Lee, Dong Yoon Lee, Byung Woo Jeon, Kwon Jin Kim | 2021-10-05 |
| 11022325 | Air conditioner | KwonJin Kim, Sung Jae Kim, Seon Uk Na, Yeon-Seob YUN, Young Uk Yun +3 more | 2021-06-01 |
| 10935273 | Air conditioner | Sung-June Cho, Kwon Jin Kim, Sung Jae Kim, Seon Uk Na, Yeon-Seob YUN +3 more | 2021-03-02 |