Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6810684 | Air conditioner | Won Hee Lee, Cheol Soo Ko, In Wha Jung, Dong Soo Moon, Chul Oh Ahn +4 more | 2004-11-02 |
| 6640574 | Air conditioner | Won Hee Lee, Cheol Soo Ko, In Wha Jung, Dong Soo Moon, Chul Oh Ahn +4 more | 2003-11-04 |