Issued Patents All Time
Showing 1–25 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12409407 | Carbon dioxide capturing apparatus and capturing method | Hwi Min Seo, Ki Woong Kim, Dae Jin Kim | 2025-09-09 |
| 12152201 | Method of converting hydrocarbon using PST-32 and PST-2 zeolite catalysts | Suk Bong Hong, Hwajun Lee, Jiho Shin, Na Young Kang | 2024-11-26 |
| 11865514 | Catalyst for producing olefin, including oxygen carrier material and dehydrogenation catalyst | Won Choon Choi, Daesung PARK, Hawon PARK, Changyeol SONG, Deuk Soo Park +2 more | 2024-01-09 |
| 11684907 | Catalyst having enhanced conversion and selectivity for manufacturing olefin, and manufacturing method therof | Won Choon Choi, Daesung PARK, Hawon PARK, Deuk Soo Park, Ung Gi HONG +2 more | 2023-06-27 |
| 11679376 | Catalyst for preparing light olefin, preparation method therefor, and method for preparing light olefin by using same | Na Young Kang, Yu Jin Lee | 2023-06-20 |
| 11660591 | Catalyst regenerator and catalyst regeneration method | Dae Hoon Lee, Kwan-Tae Kim, Sungkwon JO | 2023-05-30 |
| 11542171 | Method for preparing ZSM-5 zeolite | Na Young Kang, Chang Hwan Kim, Yu Jin Lee | 2023-01-03 |
| 11439982 | Method of producing olefin using circulating fluidized bed process | Won Choon Choi, Daesung PARK, Hawon PARK, Changyeol SONG, Deuk Soo Park +4 more | 2022-09-13 |
| 11279885 | Catalyst regenerator | Sungkwon JO, Seongil Choi, Donghyun CHO, Dae Hoon Lee, Kwan-Tae Kim +2 more | 2022-03-22 |
| 11148123 | Catalyst for producing olefin, and continuous reaction-regeneration olefin producing method using the catalyst | Won Choon Choi, Su Jin Gong, Seo Hyun Shim, Deuk Soo Park, Ung Gi HONG | 2021-10-19 |
| 10821432 | Olefin production method comprising reduction pretreatment | Deuk Soo Park, Ung Gi HONG, Hyeongchan Ahn, Won Choon Choi | 2020-11-03 |
| 10737990 | Olefin production method using circulating fluidized bed process | Deuk Soo Park, Ung Gi HONG, Hyeongchan Ahn, Won Choon Choi | 2020-08-11 |
| 10596564 | Catalyst regenerator, fluid catalytic cracking reaction system and catalyst regeneration method | Dae Hoon Lee, Kwan-Tae Kim, Sungkwon JO | 2020-03-24 |
| 10226757 | Method for surface-modifying metal silicide, and method and apparatus for preparing trichlorosilane using surface-modified metal silicide | Won Choon Choi, Woo-Hyung Lee, Hwi Min Seo, Na Young Kang, Joo Hee Han +3 more | 2019-03-12 |
| 10131850 | Naphtha and methanol mixed catalytic cracking reaction process | Na Young Kang, Won Choon Choi, Dae Jin Kim, Hwi Min Seo, Sunyoung Park +2 more | 2018-11-20 |
| 9764960 | Method and apparatus for preparation of granular polysilicon | Hee Young Kim, Kyung Koo Yoon, Won Choon Choi | 2017-09-19 |
| 9694312 | Carbon dioxide capture apparatus | Won Choon Choi, Na Young Kang, Hwi Min Seo | 2017-07-04 |
| 9636658 | Method of manufacturing lithium silicate-based high-temperature dry sorbent for removing carbon dioxide and high-temperature dry carbon dioxide sorbent | Jae-Chang Kim, Soo Chool Lee, Suk Yong JUNG, Yong Mok Kwon, Min-Joo Kim +1 more | 2017-05-02 |
| 9604851 | Method for producing high silica zeolite using recovered silica filtrate, and high silica zeolite produced according to said method | Na Young Kang, Won Choon Choi, Hwi Min Seo, Chul Wee Lee | 2017-03-28 |
| 9321039 | Catalyst for decomposition of perfluorinated compound containing halogen acid gas, and preparation method thereof | Won Choon Choi, Na Young Kang, Min-Whee Cho, Song-Jong Cho, Sung Ho Cho +2 more | 2016-04-26 |
| 9138730 | Cation-exchanged zeolite catalyst and process for producing mono-iodo benzene through transiodination by using it | Yong-Jin Yi, Jae-Bong Lim, Il-Hoon Cha, Han-Seok Kim, Won Choon Choi +1 more | 2015-09-22 |
| 9108180 | Cation-exchanged zeolite catalyst and process for producing mono-iodo benzene through transiodination by using it | Yong-Jin Yi, Jae-Bong Lim, Il-Hoon Cha, Han-Seok Kim, Won Choon Choi +1 more | 2015-08-18 |
| 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 |
| 8937483 | Semiconductor package transferring apparatus and method of manufacturing semiconductor device using the same | Hyeck-Jin Jeong, Yong-Jin Jung, Heul-Seog Kim | 2015-01-20 |
| 8894753 | Carbon dioxide capture systems | Won Choon Choi, Na Young Kang | 2014-11-25 |