Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11660584 | Catalyst for oxidative dehydrogenation, method of preparing catalyst, and method of performing oxidative dehydrogenation using catalyst | Dong Hyun Ko, Kyong Yong Cha, Dae Heung Choi, Ye Seul Hwang, Jun Han +1 more | 2023-05-30 |
| 11117119 | Catalyst for oxidative dehydrogenation and method of preparing the same | Yoon Jae Min, Dong Hyun Ko, Kyong Yong Cha, Se Won Baek, Jun Han | 2021-09-14 |
| 10994262 | Catalyst for oxidative dehydrogenation and method of preparing the same | Seongmin Kim, Dong Hyun Ko, Kyong Yong Cha, Dae Heung Choi, Jun Han +6 more | 2021-05-04 |
| 10926246 | Method of preparing catalyst for oxidative dehydrogenation | Jun Han, Dong Hyun Ko, Kyong Yong Cha, Sun-Hwan Hwang, Seong-Min Kim | 2021-02-23 |
| 10888844 | Catalyst for oxidative dehydrogenation, method of preparing catalyst, and method of performing oxidative dehydrogenation using catalyst | Dong Hyun Ko, Kyong Yong Cha, Dae Heung Choi, Ye Seul Hwang, Jun Han +1 more | 2021-01-12 |
| 10843173 | Ferrite catalyst for oxidative dehydrogenation, method of preparing ferrite catalyst, and method of preparing butadiene using ferrite catalyst | Sun-Hwan Hwang, Dong Hyun Ko, Jun Han Kang, Kyong Yong Cha, Joo Hyuck Lee +6 more | 2020-11-24 |
| 10730809 | Butadiene preparation method providing excellent catalyst reproducibility | Dong Hyun Ko, Jun Han Kang, Kyong Yong Cha, Ye Seul Hwang, Jun Han +1 more | 2020-08-04 |
| 10543478 | Catalyst for oxidative dehydrogenation and method of preparing the same | Kyong Yong Cha, Dong Hyun Ko, Dae Heung Choi, Ye Seul Hwang, Jun Han +2 more | 2020-01-28 |
| 10518250 | Ferrite-based catalyst composite, method of preparing the same, and method of preparing butadiene using the same | Dae Heung Choi, Dong Hyun Ko, Kyong Yong Cha, Ye Seul Hwang, Sun-Hwan Hwang +6 more | 2019-12-31 |
| 10486150 | Catalyst for oxidative dehydrogenation and method of preparing the same | Sun-Hwan Hwang, Dong Hyun Ko, Kyong Yong Cha, Dae Heung Choi, Ye Seul Hwang +6 more | 2019-11-26 |
| 10343958 | Catalyst for coating surface of porous material and method of treating surface of porous material | Jun Han Kang, Dong Hyun Ko, Seong-Min Kim, Hyun Seok Nam, Joo Hyuck Lee +6 more | 2019-07-09 |
| 10315969 | Method of preparing multicomponent composite metal oxide catalyst | Ye Seul Hwang, Dong Hyun Ko, Kyong Yong Cha, Dae Heung Choi, Jun Han Kang +4 more | 2019-06-11 |
| 9969661 | Method of preparing conjugated diene and device therefor | Sang Jin Han, Jun Han Kang, Dong Hyun Ko, Hyun Seok Nam, Joo Hyuck Lee +4 more | 2018-05-15 |
| 9925525 | Bismuth molybdate-based catalyst having zeolite coating layer, method of preparing the same, and method of preparing 1,3-butadiene using the same | Dae Heung Choi, Dong Hyun Ko, Jun Han Kang, Kyong Yong Cha, Dae Chul Kim +5 more | 2018-03-27 |
| 9884315 | Composite oxide catalyst for preparing butadiene and method of preparing the same | Kyong Yong Cha, Dae Heung Choi, Ye Seul Hwang, Dong Hyun Ko | 2018-02-06 |
| 9782765 | Mesoporous composite oxide catalyst, method for preparing the same and method for synthesizing 1,3-butadiene using the same | Dong Hyun Ko, Kyong Yong Cha, Jun Han Kang, Dae Chul Kim, Hyun Seok Nam +1 more | 2017-10-10 |
| 9751819 | Method of preparing butadiene | Dae Heung Choi, Dong Hyun Ko, Kyong Yong Cha, Ye Seul Hwang, Jun Han Kang +4 more | 2017-09-05 |
| 9724676 | Oxidation catalyst for production of butadiene and method of preparing the same | Dae Heung Choi, Dong Hyun Ko, Jun Han Kang, Kyong Yong Cha, Dae Chul Kim +1 more | 2017-08-08 |
| 9592496 | Catalyst composition and method for preparing same | Dae Chul Kim, Dong Hyun Ko, Sung-June Cho, Jun Han Kang, Kyong Yong Cha +6 more | 2017-03-14 |