Issued Patents All Time
Showing 25 most recent of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12415873 | Method for preparing liquid rubber and liquid rubber prepared therefrom | Ji Hyun Choi, Gyeong Shin Choi, Jong Yeol Baek, Hee Jeong Kim | 2025-09-16 |
| 12344699 | Method for halogenating isobutene-isoprene copolymer | Jong Yeol Baek, Moon Gon Jeong, Gyeong Shin Choi | 2025-07-01 |
| 12325763 | Catalyst composition and method for preparing polyisobutene using the same | Dong Hyun Jo, Seong Beom Heo, Jin Woo Lee, Gyeong Shin Choi, Hee Jeong Kim | 2025-06-10 |
| 12319771 | Catalyst composition and method for preparing isobutene-isoprene copolymer using the same | Jeong Sik Kim, Hee Jeong Kim, Gyeong Shin Choi | 2025-06-03 |
| 12221458 | Organic borate-based catalyst, method for preparing isobutene oligomer using the same and isobutene oligomer prepared thereby | Gyeong Shin Choi, Ji Hyun Choi, Jin Woo Lee, Dong Hyun Jo, Jeong Sik Kim | 2025-02-11 |
| 12202924 | Method for separating polybutene | Woo Sung Hwang, Jeong-Seok Lee, Hye Mi Kim, Gyeong Shin Choi, Dong Hyun Jo | 2025-01-21 |
| 11987651 | Catalyst composition and method for preparing hydrocarbon resin using the same | Gyeong Shin Choi, Young-Soo Ko, Ha Young Jung, Ann Chaise Carino | 2024-05-21 |
| 11746165 | Method for preparing polybutene oligomer | Dong Hyun Jo, Jin Woo Lee, Gyeong Shin Choi | 2023-09-05 |
| 11718632 | Catalyst composition and method for preparing isobutene-based oligomer using the same | Hee Jeong Kim, Gyeong Shin Choi | 2023-08-08 |
| 11578152 | Cationic metal complex, organometal catalyst having borate-based bulky anion, method for preparing the same, and method for preparing oligomer or polymer using the same | Gyeong Shin Choi, Dong Hyun Jo, Seung Young Park, Hyun Taek Oh | 2023-02-14 |
| 11414504 | Method for preparing transition metal complex | Gyeong Shin Choi, Dong Hyun Jo, Hyun Taek Oh, Seung Young Park | 2022-08-16 |
| 11370855 | Method for preparing butene oligomer | Jin Woo Lee, Dong Hyun Jo, Gyeong Shin Choi | 2022-06-28 |
| 11198777 | Modified conjugated diene-based polymer and rubber composition including the same | Hyoung Woo Lee, Seong Du Lee | 2021-12-14 |
| 11155655 | Organometal catalyst having cationic transition metal complex and borate-based bulky anion, method for preparing the same, and method for preparing oligomer using the same | Gyeong Shin Choi, Dong Hyun Jo, Hyun Taek Oh, Seung Young Park | 2021-10-26 |
| 11130832 | Modified conjugated diene-based polymer and rubber composition including the same | Jin Young Kim, He Seung Lee, Ki Seok Son, No Ma Kim | 2021-09-28 |
| 10906019 | Method for preparing modified polymerization initiator and apparatus for preparing modified polymerization initiator | Tae Chul Lee, Hae Sung Sohn, No Ma Kim | 2021-02-02 |
| 10253119 | Method for preparing conjugated diene-based polymer | Hyo Jin Bae, Kyoung Hwan Oh, Woo Jin Cho, Jeong Heon Ahn | 2019-04-09 |
| 10184012 | Modified butadiene-based polymer and modifier useful for preparing the same | Hyo Jin Bae, Hee Jung Jeon, Seung Ho Choi, Kyoung Hwan Oh, Dong Hui Kim +4 more | 2019-01-22 |
| 10040876 | Conjugated diene-based polymer | Kyoung Hwan Oh, Hyo Jin Bae, Jeong Heon Ahn, Woo Jin Cho, Suk Youn Kang | 2018-08-07 |
| 9771441 | Preparation method of a polypropylene and a polypropylene obtained therefrom | Ji Ho Choi, Churl-Young Park, Kyung Seop Noh, Sang Jin Jeon, Ra Yun Choi +1 more | 2017-09-26 |
| 9587053 | Preparation method of a propylene-1-butene copolymer and a propylene-1-butene copolymer obtained therefrom | Kyung Seop Noh, Churl-Young Park, Sang Jin Jeon, Ra Yun Choi, Byung Seok Kim +1 more | 2017-03-07 |
| 9527946 | Olefin block copolymer and preparation method thereof | Kyung Seop Noh, Nan-Young Lee, Sang Eun An, Sang Jin Jeon, Cheon-Il Park +1 more | 2016-12-27 |
| 9235351 | Selective interfacing apparatus and method | Soon-gyu Jeong, Dong Hwan LIM, Hyung-kyoon Kim, Dong Jin Lee, Chang Heon Kim | 2016-01-12 |
| 9109055 | Transition metal catalyst composition including a transition metal compound and a method of preparing a polyolefin using the catalyst composition | Kyung Seop Noh, Nan-Young Lee, Sang Jin Jeon | 2015-08-18 |
| 9079992 | Olefin block copolymer and preparation method thereof | Kyung Seop Noh, Nan-Young Lee, Sang Eun An, Sang Jin Jeon, Cheon-Il Park +1 more | 2015-07-14 |