Issued Patents 2018
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10150720 | Device for preparing n-butanol | Sung Kyu Lee, Jong Ku Lee | 2018-12-11 |
| 10112122 | Device for preparing alkanol | Sung Kyu Lee, Jong Ku Lee | 2018-10-30 |
| 10105670 | Heat recovery device | Tae Woo Kim, Sung Kyu Lee | 2018-10-23 |
| 10086325 | Membrane separation device | Sang Beom Lee, Moon-kyoon Chun, Sung Ho Lee, Jong Ku Lee | 2018-10-02 |
| 9983690 | Four row overloaded QWERTY-like keypad layout | Hyun Woo Shin | 2018-05-29 |
| 9919238 | Distillation apparatus | Sung Kyu Lee, Sung Kyun Kim, Jong Ku Lee | 2018-03-20 |
| 9895625 | Method and apparatus for preparing isopropyl alcohol | Sung Kyu Lee, Jong Ku Lee | 2018-02-20 |
| 9895624 | Distillation device | Sung Kyu Lee, Sung Kyun Kim, Jong Ku Lee | 2018-02-20 |
| 9884264 | Divided wall distillation column for producing high purity acrylic acid and fractional distillation method using the same | Sung Kyu Lee, Jong Ku Lee | 2018-02-06 |
| 9861907 | Divided wall distillation column for producing high purity normal butanol, and normal butanol distillation method | Sung Kyu Lee, Jong Ku Lee | 2018-01-09 |