Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8424325 | Air conditioner | In Ho Choi, Jong Chan Park, Han Lim Choi, Dong Whan Choi | 2013-04-23 |
| 8387404 | Air conditioner | In Ho Choi, Jong Chan Park, Han Lim Choi, Dong Whan Choi | 2013-03-05 |
| 8146707 | Air conditioner | In Ho Choi, Jong Chan Park, Han Lim Choi, Dong Whan Choi | 2012-04-03 |
| 7572179 | Ventilation system | Dong Hwan Choi, Kyung Hwan Kim, Ho Seon Choi, Keun Hyoung Choi | 2009-08-11 |