Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9127215 | Method for reducing the amount of organic acids in a hydrocarbon oil fraction | Jin Kyu Choi, Cheol-Woo Park, Tae Won Uhm, Il Yong Jeong, Ha Na Song +5 more | 2015-09-08 |
| 8911613 | Method of simultaneously manufacturing high quality naphthenic base oil and heavy base oil | Kyung Seok Noh, Jae Wook Ryu, Gyung Rok Kim, Seung Woo Lee, Do Woan Kim +4 more | 2014-12-16 |
| 8834706 | Method for preparing lubricating base oils by using vacuum distilled deasphalted oil | Kyung Seok Noh, Jae Wook Ryu, Gyung Rok Kim, Seung Woo Lee, Do Woan Kim +4 more | 2014-09-16 |