Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8911613 | Method of simultaneously manufacturing high quality naphthenic base oil and heavy base oil | Kyung Seok Noh, Jae Wook Ryu, Do Hyoun Kim, Gyung Rok Kim, Seung Woo Lee +4 more | 2014-12-16 |
| 8834706 | Method for preparing lubricating base oils by using vacuum distilled deasphalted oil | Kyung Seok Noh, Jae Wook Ryu, Do Hyoun Kim, Gyung Rok Kim, Seung Woo Lee +4 more | 2014-09-16 |