Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12370517 | Catalyst loading method and method for preparation of butadiene by using same | Daeheung Choi, Myungji Suh, Sunhwan Hwang, Dong Hyun Ko, Kyong Yong Cha +1 more | 2025-07-29 |
| 11865522 | Method for preparing zinc ferrite-based catalyst and zinc ferrite-based catalyst prepared thereby | Sang Jin Han, Dong Hyun Ko, Kyong Yong Cha, Sunhwan Hwang | 2024-01-09 |
| 11731093 | Catalyst loading method and method for preparation of butadiene by using same | Daeheung Choi, Myungji Suh, Sunhwan Hwang, Dong Hyun Ko, Kyong Yong Cha +1 more | 2023-08-22 |
| 11660584 | Catalyst for oxidative dehydrogenation, method of preparing catalyst, and method of performing oxidative dehydrogenation using catalyst | Myung Ji Suh, Dong Hyun Ko, Kyong Yong Cha, Dae Heung Choi, Jun Han +1 more | 2023-05-30 |
| 11618012 | Catalyst for oxidative dehydrogenation reaction, and method for producing same | Dong Hyun Ko, Joohyuck Lee, Myungji Suh | 2023-04-04 |
| 11465138 | Method for producing metal complex catalyst, and metal complex catalyst produced by same | Sunhwan Hwang, Kyong Yong Cha, Dong Hyun Ko, Jun Han, Sang Jin Han +1 more | 2022-10-11 |
| 11370730 | Method for preparing 1,3-butadiene | Hyunseok Nam, Jun Han Kang, Kyong Yong Cha, Jaewon Jeong, Dong Hyun Ko +8 more | 2022-06-28 |
| 10994262 | Catalyst for oxidative dehydrogenation and method of preparing the same | Seongmin Kim, Dong Hyun Ko, Kyong Yong Cha, Dae Heung Choi, Myung Ji Suh +6 more | 2021-05-04 |
| 10888844 | Catalyst for oxidative dehydrogenation, method of preparing catalyst, and method of performing oxidative dehydrogenation using catalyst | Myung Ji Suh, Dong Hyun Ko, Kyong Yong Cha, Dae Heung Choi, 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 | Myung Ji Suh, Dong Hyun Ko, Jun Han Kang, Kyong Yong Cha, Jun Han +1 more | 2020-08-04 |
| 10543478 | Catalyst for oxidative dehydrogenation and method of preparing the same | Kyong Yong Cha, Myung Ji Suh, Dong Hyun Ko, Dae Heung Choi, 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, Myung Ji Suh, 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, Myung Ji Suh +6 more | 2019-11-26 |
| 10456775 | Method of preparing zinc ferrite catalyst | Dong Hyun Ko, Kyong Yong Cha, Dae Heung Choi | 2019-10-29 |
| 10343958 | Catalyst for coating surface of porous material and method of treating surface of porous material | Myung Ji Suh, Jun Han Kang, Dong Hyun Ko, Seong-Min Kim, Hyun Seok Nam +6 more | 2019-07-09 |
| 10315969 | Method of preparing multicomponent composite metal oxide catalyst | Dong Hyun Ko, Kyong Yong Cha, Dae Heung Choi, Myung Ji Suh, 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 | Myung Ji Suh, Kyong Yong Cha, Dae Heung Choi, Dong Hyun Ko | 2018-02-06 |
| 9751819 | Method of preparing butadiene | Dae Heung Choi, Dong Hyun Ko, Myung Ji Suh, Kyong Yong Cha, Jun Han Kang +4 more | 2017-09-05 |
| 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 |