Issued Patents All Time
Showing 101–107 of 107 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8888964 | Divided wall distillation column for producing high purity normal butanol, and normal butanol distillation method | Sung Kyu Lee, Jong Ku Lee | 2014-11-18 |
| 8864948 | Dividing wall column for producing high-purity neopentyl glycol and manufacturing method using same | Sung Kyu Lee, Jong Ku Lee | 2014-10-21 |
| 8852405 | Dual-mode dividing wall column | Sung Kyu Lee, Jang Ku Lee | 2014-10-07 |
| 8845864 | Dividing wall distillation column | Sung Kyu Lee, Jong Ku Lee | 2014-09-30 |
| 8771479 | Energy-saving distillation column assembly | Sung Kyu Lee, Jong Ku Lee | 2014-07-08 |
| 8764946 | Dividing wall distillation columns for production of high-purity 2-ethylhexanol and fractionation method using same | Sung Kyu Lee, Jong Ku Lee | 2014-07-01 |
| 8535488 | Method and apparatus for purification of trichlorosilane | Chul Hwan Choi, Jeong-Seok Lee, Kwang-Wook Choi, Dong Kyu Kim | 2013-09-17 |