Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8691076 | Process for manufacturing naphthenic base oils from effluences of fluidized catalytic cracking unit | Chang Kuk Kim, Ju Hyun Lee, Sam Ryong Park, Gyung Rok Kim, Yoon Mang Hwang | 2014-04-08 |
| 8585889 | Process for manufacturing high quality naphthenic base oils | Chang Kuk Kim, Kyung Seok Noh, Ju Hyun Lee, Byoung In Lee, Seung Woo Lee +5 more | 2013-11-19 |