Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10822324 | Method for separating propylene carbonate in preparing process of polyether carbonate polyol | Jae-Hee Ha | 2020-11-03 |
| 10619006 | Dual metal cyanide catalyst, preparation method therefor, and method for preparing polycarbonate polyol by using catalyst | Il Beom Kim, Seong-hwan Yun, Jae-Hee Ha, Seong-jin Byeon | 2020-04-14 |
| 10377696 | Method and apparatus for purification of dimethyl carbonate using pervaporation | Jaap Ferdinand Vente, Anatolie Motelica | 2019-08-13 |
| 9334228 | Method for preparing dialkyl carbonate | Jae Cheon Koh, Kyong Tae Kim, Dong Jun Koh, Young Sam Sa, Yun Min Kim +1 more | 2016-05-10 |
| 8197779 | Catalyst for removing nitrogen oxides from exhaust gas, method for preparing the same and method for removing nitrogen oxides using the same from exhaust gas | Ju-Hyung Lee, In-Sik Nam, Seong-Moon Jung, Jong-Sik Choi, Sun Joo Kim +2 more | 2012-06-12 |
| 7939039 | Bimetallic catalyst for NOx reduction in engine exhaust | Byong K. Cho | 2011-05-10 |
| 7891171 | Hybrid catalyst for NOx reduction using fuel hydrocarbons as reductant | Byong K. Cho | 2011-02-22 |
| 7049261 | Zeolite catalyst and preparation process for NOx reduction | In-Sik Nam, Sung-Dae Yim, Se Oh, Byong K. Cho | 2006-05-23 |