Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7431749 | Catalytic filter for removing soot particulates from diesel engine exhaust and method of preparing the same | Yong Woo Kim, Joon-Seok Min, Sung-Hyoan Kim, Chang Q Lee | 2008-10-07 |
| 7189289 | Cleaning agent and method for cleaning heater tubes | Jeon Keun Oh, Sam Ryong Park, Gi Won Park | 2007-03-13 |
| 6790344 | Liquid-phase adsorption process for removing and concentrating heteroatom compounds in hydrocarbons | Sin-Young Khang, Dong-Soon Min, Jae Wook Ryu, Kwan-Sik Yoo, Jyu-Hwan Kim | 2004-09-14 |
| 6248230 | Method for manufacturing cleaner fuels | Kyung Il Choi, Sin-Young Khang, Dong-Soon Min, Jae Wook Ryu, Kwan-Sik Yoo +1 more | 2001-06-19 |
| 5580442 | Method for producing feedstocks of high quality lube base oil from unconverted oil of fuels hydrocracker operating in recycle mode | Sook-hyung Kwon, Yun-kil Lee | 1996-12-03 |