Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12257566 | Carbon dioxide absorbent including phenolate-based ionic liquid and aliphatic alcohol and method of separating carbon dioxide using the same | Lim Ok Pyun, Ilgu Jung, Byul Ha Na Min, Junga Lee | 2025-03-25 |
| 9771453 | Process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same as catalyst | Myungahn Ok, BunYeoul Lee, Sujith S., Anish Cyriac, Jaeki Min +1 more | 2017-09-26 |
| 9481762 | Catalytic system for CO2/epoxide copolymerization | Sujith Sudevan, Myung Ahn Ok, Jieun Yoo, BunYeoul Lee, Sung Jae Na | 2016-11-01 |
| 9371420 | Flame-retarding carbon dioxide/epoxide copolymer and method for preparing the same | SungJae Na, Sujith Sudevan, Myungahn Ok, YongGyu Han, KwangJin Chung +3 more | 2016-06-21 |
| 9217057 | Coordination complexes for producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same as catalyst | Myungahn Ok, BunYeoul Lee, Sujith S., Anish Cyriac, Jaeki Min +1 more | 2015-12-22 |
| 9023979 | 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 | SungJae Na, Sujith Sudevan, Myungahn Ok, Young Gyu Han, KwangJin Chung +2 more | 2015-05-05 |
| 8987411 | Catalytic system for CO2/epoxide copolymerization | Sujith Sudevan, Myungahn Ok, Jieun Yoo, BunYeoul Lee, SungJae Na | 2015-03-24 |
| 8981043 | Catalytic system for CO2/epoxide copolymerization | Sujith Sudevan, Myungahn Ok, Jieun Yoo, BunYeoul Lee, SungJae Na | 2015-03-17 |
| 8912307 | Flame-retarding carbon dioxide/epoxide copolymer and method for preparing the same | SungJae Na, Sujith Sudevan, Myungahn Ok, YongGyu Han, KwangJin Chung +3 more | 2014-12-16 |
| 8900483 | Polymer electrolyte composition and dye-sensitized solar cell containing the same | YongGyu Han, Sujith Sudevan, Myungahn Ok, SungJae Na, KwangJin Chung +2 more | 2014-12-02 |
| 8871898 | Method for preparing carbon dioxide/epoxide copolymers containing ether linkages | SungJae Na, Sujith Sudevan, Myungahn Ok, YongGyu Han, KwangJin Chung +2 more | 2014-10-28 |
| 8791274 | Coordination complexes and process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same as catalyst | Myungahn Ok, BunYeoul Lee, S. Sujith, Anish Cyriac, Jaeki Min +1 more | 2014-07-29 |
| 8642721 | Coordination complexes and process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same catalyst | Myungahn Ok, BunYeoul Lee, Sujith S., Anish Cyriac, Jaeki Min +1 more | 2014-02-04 |
| 8637634 | Block and graft copolymers of poly(alkylene carbonate) and various polymers | SungJae Na, Sujith Sudevan, Myungahn Ok, YongGyu Han, KwangJin Chung +3 more | 2014-01-28 |
| 8546514 | Continuous process for manufacturing aliphatic polycarbonates from carbon dioxide and epoxides | Byoungmu Chang, Gwangbin Moon, Myungahn Ok, Jieun Yoo, Sun Choi +8 more | 2013-10-01 |
| 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 | SungJae Na, Sujith Sudevan, Myungahn Ok, YoungGyu Han, KwangJin Chung +2 more | 2013-09-10 |
| 8507733 | Coordination complexes and process of producing polycarbonate by copolymerization of carbon dioxide and epoxide using the same as catalyst | Myungahn Ok, BunYeoul Lee, Sujith S., Anish Cyriac, Jaeki Min +1 more | 2013-08-13 |
| 8372996 | Transition metal catalytic systems and methods for preparing ethylene homopolymers or copolymers of ethylene and α-olefins using the same | Myungahn Ok, Dongcheol Shin, Jongsok Hahn, Hoseong Lee, Daeho Shin | 2013-02-12 |
| 8232359 | Process for preparing ethylene homopolymers or copolymers of ethylene with α-olefin by using the transition metal compound | Myungahn Ok, Dongcheol Shin, Hoseong Lee, Jongsok Hahn, Choonsik Shim | 2012-07-31 |
| 8067511 | Ethylene copolymer and a method of preparing the same | Daeho Shin, Choonsik Shim, Sungseok Chae, Myungahn Ok, Seungbum Kwon +2 more | 2011-11-29 |
| 8013086 | Method for preparing elastomeric copolymers of ethylene and α-olefins | Myungahn Ok, Daeho Shin, Seungbum Kwon, Jongsok Hahn, Hoseong Lee +3 more | 2011-09-06 |
| 7928173 | Transition metal catalytic systems and methods for preparing ethylene homopolymers or copolymers of ethylene and α-olefins using the same | Myungahn Ok, Dongcheol Shin, Hoseong Lee, Jongsok Hahn, Choonsik Shim | 2011-04-19 |