Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9590407 | Device for removing ice and snow from power transmission line | Young-Ki Kim, Seung-Hoon Lee, Sang Hee CHOI, Bum Young Kang | 2017-03-07 |
| 5763352 | Catalyst composition for the purification of the exhaust of diesel vehicles, catalyst using the same and preparing methods thereof | Bon-Chul Ku, Yong Woo Kim, Yong-Taek Choi, Ki-Ho Lee, Kyeong-Cheol Min +1 more | 1998-06-09 |
| 5503645 | Compound having improved low temperature fluidity, and a middle distillate composition and a petroleum fuel composition containing the same | Bon-Cheol Ku, Ki-Ho Lee, Jin Soo Lee | 1996-04-02 |