Issued Patents All Time
Showing 26–50 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8889804 | Method for preparing polypropylene using transition metal compound containing thiophene-fused cyclopentadienyl ligand | Ji Hae Park, Seung-Hyun Do, Hwa-Kyu Kim, Jae Young Park, Seung Woong Yoon | 2014-11-18 |
| 8889581 | Catalyst composition for olefin polymerization and preparation method for polyolefin using the same | Ji Hae Park, Seung-Hyun Do, Young-Kook Kim, In-Sung Nam, Seung Woong Yoon | 2014-11-18 |
| 8829156 | Process for producing polycarbonates and a coordination complex used therefor | S. Sujith, Eun Kyung Noh, Jae Ki Min | 2014-09-09 |
| 8785592 | Preparation of poly(alkylene carbonate) containing cross-linked high molecular weight chains | Ji Su Jeong, Sung Jae Na, Sujith Sudevan, Myung Ahn Ok, Yong Gyu Han +2 more | 2014-07-22 |
| 8735521 | Cycloolefin-based polymer compound, preparation method thereof and selective hydrogenation process | Ik Kyung Sung, Woon Sung Hwang, Jung Hoon Seo, Sung Jae Na, Seung Taek Yu | 2014-05-27 |
| 8637634 | Block and graft copolymers of poly(alkylene carbonate) and various polymers | Jisu Jeong, SungJae Na, Sujith Sudevan, Myungahn Ok, YongGyu Han +3 more | 2014-01-28 |
| 8598309 | Catalytic system of nitrate anions for CO2/epoxide copolymerization | Ji Su Jeong, Sujith Sudevan, Myung Ahn Ok, Sung Jae Na, Yong Gyu Han +2 more | 2013-12-03 |
| 8530615 | Process for producing polycarbonates and a coordination complex used therefor | S. Sujith, Eun Kyung Noh, Jae Ki Min | 2013-09-10 |
| 8530616 | Precise control of molecular weight and chain shape control in carbon dioxide/epoxide alternating copolymerization and preparation of low molecular weight poly(alkylene carbonate) thereby | Jisu Jeong, SungJae Na, Sujith Sudevan, Myungahn Ok, YoungGyu Han +2 more | 2013-09-10 |
| 8420755 | Compounds, catalyst composition comprising the same, and method for preparing of cycloolefin-based polymer using the same | Young-Chul Won, Sung-Ho Chun, Dai-Seung Choi, Dong Woo Yoo | 2013-04-16 |
| 8163867 | Process for producing polycarbonates and a coordination complex used therefor | Sujith S., Eun Kyung Noh, Jae Ki Min | 2012-04-24 |
| 8129488 | Transition metal complexes, catalyst compositions containing the same, and olefin polymerization using the catalyst compositions | Choong Hoon Lee, Eun Jung Lee, Seungwhan Jung, Jong-Joo Ha, Beomdoo Seo +2 more | 2012-03-06 |
| 8048973 | Transition metal complex, catalyst composition including the same and olefin polymer using catalyst composition | Choong Hoon Lee, Eun Jung Lee, Seungwhan Jung, Boram Lee, Jung Ah Lee | 2011-11-01 |
| 8039671 | Transition metal complex, catalyst composition including the same and olefin polymer using catalyst composition | Choong Hoon Lee, Eun Jung Lee, Seungwhan Jung, Boram Lee, Jung Ah Lee | 2011-10-18 |
| 7932207 | Method for preparing transition metal complexes, transition metal complexes prepared using the method, catalyst composition containing the complexes | Choong Hoon Lee, Eun Jung Lee, Seung-Whan Jung, Jung Ah Lee, Bo Ram Lee | 2011-04-26 |
| 7928256 | Transition metal complex, catalyst composition including the same and olefin polymer using catalyst composition | Choong Hoon Lee, Eun Jung Lee, Seungwhan Jung, Boram Lee, Jung Ah Lee | 2011-04-19 |
| 7807762 | Catalyst composition comprising Group 4 transition metal complexes and method for preparing polyolefins using the same | Choong Hoon Lee, Eun Jung Lee, Seung-Whan Jung, Jung Ah Lee, Bo Ram Lee | 2010-10-05 |
| 7678933 | Transition metal complexes and preparation methods thereof | Choong Hoon Lee, Eun Jung Lee, Seung-Whan Jung, Jung Ah Lee, Bo Ram Lee | 2010-03-16 |
| 7629481 | Ansa-metallocene compound, process of preparing the same, and process of preparing polyolefin using the same | Choong Hoon Lee, Jong-Joo Ha, Seung-Whan Jung, Eunjung Lee, Beomdoo Seo +4 more | 2009-12-08 |
| 7538239 | Transition metal complexes, catalyst compositions containing the same, and olefin polymerization using the catalyst compositions | Choong Hoon Lee, Eun Jung Lee, Seungwhan Jung, Jong-Joo Ha, Beomdoo Seo +2 more | 2009-05-26 |
| 7531608 | Transition metal complexes, catalyst compositions containing the same, and olefin polymerization using the catalyst compositions | Choong Hoon Lee, Eun Jung Lee, Seungwhan Jung, Jong-Joo Ha, Beomdoo Seo +2 more | 2009-05-12 |
| 7247595 | Supported metallocene catalyst and olefin polymerization using the same | Jae-Seung Oh, Joo-Eun Lee, Do Hoon Lee | 2007-07-24 |
| 7244805 | Bimetallic zinc complex and process of producing polycarbonate using the same as polymerization catalyst | Young-Whan Park, Hyo-Sun Lee, Young-Chul Won, Heon Yong Kwon, Soo Yeon Lee | 2007-07-17 |
| 7166731 | Method of preparing fulvene compounds and method of preparing ansa-metallocene compounds using the compounds | Young-Whan Park, Hyosun Lee, Sung-Don Hong, Kwang Ho Song, Boong-Goon Jeong +3 more | 2007-01-23 |
| 7041618 | Supported metallocene catalyst and olefin polymerization using the same | Jae-Seung Oh, Joo-Eun Lee, Do Hoon Lee | 2006-05-09 |