Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12421462 | Lube base oil manufacturing process utilizing refined oil fraction of waste lubricant, and lube base oil manufactured thereby | Young Wook Jeon, Jun Soo Park, Eun Kyoung Kim | 2025-09-23 |
| 12227705 | Process of producing high-quality lube base oil by using refined oil fraction of waste lubricant | Young Wook Jeon, Jin Hee Ok, Do Woan Kim | 2025-02-18 |
| 11873456 | Process of producing high-quality lube base oil by using refined oil fraction of waste lubricant | Young Wook Jeon, Jin Hee Ok, Do Woan Kim | 2024-01-16 |
| 11396636 | Mineral base oil having improved low temperature property, method for manufacturing same, and lubrication oil product comprising same | Seung Eon Lee, Hak Mook Kim, Jin Hee Ok, Jun Soo Park, Yong Rae Cho | 2022-07-26 |
| 11352580 | Mineral base oil having high viscosity index and improved volatility and method of manufacturing same | Hak Mook Kim, Kang-Min Jung, Yong Rae Cho | 2022-06-07 |
| 8936715 | Method of manufacturing high quality lube base oil using unconverted oil | Yong-Woon Kim, Gyung Rok Kim, Jae Wook Ryu, Sun Hyuk Bae, Tae Young Jang +2 more | 2015-01-20 |
| 8933283 | Process for the preparation of clean fuel and aromatics from hydrocarbon mixtures catalytic cracked on fluid bed | Cheol Joong Kim, Jae Wook Ryu, Kyeong Hak Seong, Byoung Mu Chang, Byeung Soo Lim +7 more | 2015-01-13 |
| 8911613 | Method of simultaneously manufacturing high quality naphthenic base oil and heavy base oil | Jae Wook Ryu, Do Hyoun Kim, 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 | Jae Wook Ryu, Do Hyoun Kim, Gyung Rok Kim, Seung Woo Lee, Do Woan Kim +4 more | 2014-09-16 |
| 8585889 | Process for manufacturing high quality naphthenic base oils | Chang Kuk Kim, Jee Sun Shin, Ju Hyun Lee, Byoung In Lee, Seung Woo Lee +5 more | 2013-11-19 |