Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11865514 | Catalyst for producing olefin, including oxygen carrier material and dehydrogenation catalyst | Yong Ki Park, Won Choon Choi, Daesung PARK, Hawon PARK, Changyeol SONG +2 more | 2024-01-09 |
| 11684907 | Catalyst having enhanced conversion and selectivity for manufacturing olefin, and manufacturing method therof | Yong Ki Park, Won Choon Choi, Daesung PARK, Hawon PARK, Ung Gi HONG +2 more | 2023-06-27 |
| 11484834 | Method for reducing nitrogen dioxide in exhaust gas generated during olefin production process | Ung Gi HONG, Mi Young Lee, Jung Ho Kim, Jin Young Kim, Chang Hee Yang | 2022-11-01 |
| 11439982 | Method of producing olefin using circulating fluidized bed process | Yong Ki Park, Won Choon Choi, Daesung PARK, Hawon PARK, Changyeol SONG +4 more | 2022-09-13 |
| 11148123 | Catalyst for producing olefin, and continuous reaction-regeneration olefin producing method using the catalyst | Won Choon Choi, Yong Ki Park, Su Jin Gong, Seo Hyun Shim, Ung Gi HONG | 2021-10-19 |
| 11141712 | Catalyst for producing olefin having enhanced stability, conversion rate and selectivity, and preparation method thereof | Ung Gi HONG, Won Choon Choi | 2021-10-12 |
| 10821432 | Olefin production method comprising reduction pretreatment | Ung Gi HONG, Hyeongchan Ahn, Won Choon Choi, Yong Ki Park | 2020-11-03 |
| 10737990 | Olefin production method using circulating fluidized bed process | Ung Gi HONG, Hyeongchan Ahn, Won Choon Choi, Yong Ki Park | 2020-08-11 |
| 10221111 | Method for separating propylene from dehydrogenation reaction products of propane-containing feedstock | Chul Jin Kim, Kyung Min Kim | 2019-03-05 |
| 9062262 | Process for 1,3-butadiene separation from a crude C4 stream with acetylene converter | Hee Du Lee, Kyung Jong Oh, Min-Su Ko, Min Gyoo PARK, Seong Jun Lee +5 more | 2015-06-23 |
| 9056308 | Catalyst for catalytic cracking of hydrocarbon, which is used in production of light olefin and production method thereof | Dae Hyun Choo, Hong Chan Kim, Suk Joon Kim, Ji Min Kim, Tae Jin Kim +9 more | 2015-06-16 |
| 8840864 | Method of preparing ZSM-5 zeolite using nanocrystalline ZSM-5 seeds | Sun Choi, Suk Joon Kim, Dae Hyun Choo, Yong Ki Park, Chul Wee Lee +4 more | 2014-09-23 |
| 8673802 | Catalyst for catalytic cracking of hydrocarbon, which is used in production of light olefin and production method thereof | Dae Hyun Choo, Hong Chan Kim, Suk Joon Kim, Ji Min Kim, Tae Jin Kim +9 more | 2014-03-18 |
| 8293961 | Catalytic cracking process using fast fluidization for the production of light olefins from hydrocarbon feedstock | Sun Choi, Yong Seung Kim, Suk Joon Kim, Ji Min Kim, Hong Chan Kim +3 more | 2012-10-23 |
| 7939702 | Process for increasing production of light olefins from hydrocarbon feedstock in catalytic cracking | Sun Choi, Yong Seung Kim, Suk Joon Kim, Il Mo Yang | 2011-05-10 |
| 7718840 | Process for production of light olefins from hydrocarbon feedstock | Sun Choi, Yong Seung Kim, Suk Joon Kim, Il Mo Yang, Hee Young Kim +5 more | 2010-05-18 |
| 7663013 | Solid acid catalyst for producing light olefins and process using the same | Sun Choi, Suk Joon Kim, Ahn Choi, Hee Young Kim, Yong Ki Park +4 more | 2010-02-16 |
| 7601663 | Solid acid catalyst for producing light olefins and process using the same | Sun Choi, Suk Joon Kim, Ahn Choi, Hee Young Kim, Yong Ki Park +4 more | 2009-10-13 |
| 7488700 | Hydrothermally stable microporous molecular sieve catalyst and preparation method thereof | Sun Choi, Yong Seung Kim, Suk Joon Kim, Il Mo Yang, Hee Young Kim +5 more | 2009-02-10 |