Inventor
CHOI WON CHOON
KR36 patents
⚠️ This page may combine multiple inventors who share the name “CHOI WON CHOON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SK GAS CO LTD
8 patentsUS11141712B2Oct 12, 2021
Catalyst for producing olefin having enhanced stability, conversion rate and selectivity, and preparation method thereof
SK GAS CO LTD1 citations60
US11684907B2Jun 27, 2023
Catalyst having enhanced conversion and selectivity for manufacturing olefin, and manufacturing method therof
SK GAS CO LTD0 citations59
US11865514B2Jan 9, 2024
Catalyst for producing olefin, including oxygen carrier material and dehydrogenation catalyst
SK GAS CO LTD0 citations57
US11148123B2Oct 19, 2021
Catalyst for producing olefin, and continuous reaction-regeneration olefin producing method using the catalyst
SK GAS CO LTD1 citations55
US10821432B2Nov 3, 2020
Olefin production method comprising reduction pretreatment
SK GAS CO LTD0 citations47
US12441670B2Oct 14, 2025
Method for producing olefins using novel catalyst and circulating fluidized bed process
SK GAS CO LTD0 citations46
US11439982B2Sep 13, 2022
Method of producing olefin using circulating fluidized bed process
SK GAS CO LTD0 citations46
US10737990B2Aug 11, 2020
Olefin production method using circulating fluidized bed process
SK GAS CO LTD0 citations36
KIM HEE YOUNG
6 patentsUS8821827B2Sep 2, 2014
Method and apparatus for preparation of granular polysilicon
KIM HEE YOUNG7 citations83
US8431032B2Apr 30, 2013
Method for continual preparation of polycrystalline silicon using a fluidized bed reactor
KIM HEE YOUNG6 citations83
US8114352B2Feb 14, 2012
High-pressure fluidized bed reactor for preparing granular polycrystalline silicon
KIM HEE YOUNG5 citations73
US8430959B2Apr 30, 2013
Apparatus and methods for preparation of high-purity silicon rods using mixed core means
KIM HEE YOUNG3 citations62
US8216643B2Jul 10, 2012
Methods for preparation of high-purity polysilicon rods using a metallic core means
KIM HEE YOUNG4 citations61
US8747757B2Jun 10, 2014
Method and apparatus for preparation of granular polysilicon
KIM HEE YOUNG1 citations51
KOREA RES INST CHEM TECH
5 patentsUS7771687B2Aug 10, 2010
Method for preparing granular polycrystalline silicon using fluidized bed reactor
KOREA RES INST CHEM TECH22 citations92
US8017024B2Sep 13, 2011
Method for continual preparation of polycrystalline silicon using a fluidized bed reactor
KOREA RES INST CHEM TECH12 citations84
US7972562B2Jul 5, 2011
High-pressure fluidized bed reactor for preparing granular polycrystalline silicon
KOREA RES INST CHEM TECH14 citations84
US8894753B2Nov 25, 2014
Carbon dioxide capture systems
KOREA RES INST CHEM TECH4 citations73
US7923358B2Apr 12, 2011
Methods for preparation of high-purity polysilicon rods using a metallic core means
KOREA RES INST CHEM TECH5 citations73
KOREA RES INST CHEMICAL TECH
5 patentsUS9694312B2Jul 4, 2017
Carbon dioxide capture apparatus
KOREA RES INST CHEMICAL TECH2 citations72
US9764960B2Sep 19, 2017
Method and apparatus for preparation of granular polysilicon
KOREA RES INST CHEMICAL TECH0 citations52
US10226757B2Mar 12, 2019
Method for surface-modifying metal silicide, and method and apparatus for preparing trichlorosilane using surface-modified metal silicide
KOREA RES INST CHEMICAL TECH0 citations51
US9604851B2Mar 28, 2017
Method for producing high silica zeolite using recovered silica filtrate, and high silica zeolite produced according to said method
KOREA RES INST CHEMICAL TECH0 citations51
US10131850B2Nov 20, 2018
Naphtha and methanol mixed catalytic cracking reaction process
KOREA RES INST CHEMICAL TECH0 citations48
SK ENERGY CO LTD
4 patentsUS7663013B2Feb 16, 2010
Solid acid catalyst for producing light olefins and process using the same
SK ENERGY CO LTD2 citations61
US7601663B2Oct 13, 2009
Solid acid catalyst for producing light olefins and process using the same
SK ENERGY CO LTD5 citations61
US7718840B2May 18, 2010
Process for production of light olefins from hydrocarbon feedstock
SK ENERGY CO LTD3 citations60
US7488700B2Feb 10, 2009
Hydrothermally stable microporous molecular sieve catalyst and preparation method thereof
SK ENERGY CO LTD5 citations60
CHOO DAE HYUN
2 patentsUS9056308B2Jun 16, 2015
Catalyst for catalytic cracking of hydrocarbon, which is used in production of light olefin and production method thereof
CHOO DAE HYUN4 citations69
US8673802B2Mar 18, 2014
Catalyst for catalytic cracking of hydrocarbon, which is used in production of light olefin and production method thereof
CHOO DAE HYUN0 citations48