Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6899515 | Cross flow fan and air conditioner fitted with the same | Sim Won Chin, Chang Seon Lee, Mun Kee Chung, In Cheol Yun, Dong Soo Moon +1 more | 2005-05-31 |
| 6761040 | Cross flow fan and air conditioner fitted with the same | Sim Won Chin, Chang Seon Lee, Mun Kee Chung, In Cheol Yun, Dong Soo Moon +1 more | 2004-07-13 |
| 6446455 | Personal air conditioner | Sang Bum Sohn | 2002-09-10 |
| 6254336 | Sirocco fan having an inclined cutoff | — | 2001-07-03 |