Inventor · disambiguated record
Won Choon Choi
Also filed as: CHOI WON CHOON
36 granted patents·5 pending applications·210 citations·filing 1993–2021
96Inventor score
Files withSK GAS CO LTD11KIM HEE YOUNG7KOREA RES INST CHEM TECH5KOREA RES INST CHEMICAL TECH5SK ENERGY CO LTD4
Top patents by PatentIndex Score
41 records- 0194US7771687B2Method for preparing granular polycrystalline silicon using fluidized bed reactorKOREA RES INST CHEM TECH·Filed 2007·Granted Aug 10, 2010·22 cites·14 claims
- 0292US7972562B2High-pressure fluidized bed reactor for preparing granular polycrystalline siliconKOREA RES INST CHEM TECH·Filed 2007·Granted Jul 5, 2011·14 cites·25 claims
- 0392US5371306AModified magnesium oxide catalystKOREA ADVANCED INST SCI & TECH·Filed 1993·Granted Dec 6, 1994·93 cites·8 claims
- 0490US8821827B2Method and apparatus for preparation of granular polysiliconKIM HEE YOUNG·Filed 2009·Granted Sep 2, 2014·7 cites·38 claims
- 0590US8017024B2Method for continual preparation of polycrystalline silicon using a fluidized bed reactorKOREA RES INST CHEM TECH·Filed 2007·Granted Sep 13, 2011·12 cites·18 claims
- 0684US8840864B2Method of preparing ZSM-5 zeolite using nanocrystalline ZSM-5 seedsCHOI SUN·Filed 2010·Granted Sep 23, 2014·5 cites·5 claims
- 0784US8431032B2Method for continual preparation of polycrystalline silicon using a fluidized bed reactorKIM HEE YOUNG·Filed 2009·Granted Apr 30, 2013·6 cites·19 claims
- 0882US8216643B2Methods for preparation of high-purity polysilicon rods using a metallic core meansKIM HEE YOUNG·Filed 2007·Granted Jul 10, 2012·4 cites·20 claims
- 0982US8114352B2High-pressure fluidized bed reactor for preparing granular polycrystalline siliconKIM HEE YOUNG·Filed 2009·Granted Feb 14, 2012·5 cites·26 claims
- 1080US9056308B2Catalyst for catalytic cracking of hydrocarbon, which is used in production of light olefin and production method thereofCHOO DAE HYUN·Filed 2014·Granted Jun 16, 2015·4 cites·5 claims
- 1180US8894753B2Carbon dioxide capture systemsKOREA RES INST CHEM TECH·Filed 2013·Granted Nov 25, 2014·4 cites·17 claims
- 1278US11141712B2Catalyst for producing olefin having enhanced stability, conversion rate and selectivity, and preparation method thereofSK GAS CO LTD·Filed 2018·Granted Oct 12, 2021·1 cites·10 claims
- 1378US7601663B2Solid acid catalyst for producing light olefins and process using the sameSK ENERGY CO LTD·Filed 2005·Granted Oct 13, 2009·5 cites·14 claims
- 1478US7488700B2Hydrothermally stable microporous molecular sieve catalyst and preparation method thereofSK ENERGY CO LTD·Filed 2006·Granted Feb 10, 2009·5 cites·20 claims
- 1577US8430959B2Apparatus and methods for preparation of high-purity silicon rods using mixed core meansKIM HEE YOUNG·Filed 2007·Granted Apr 30, 2013·3 cites·12 claims
- 1675US9321039B2Catalyst for decomposition of perfluorinated compound containing halogen acid gas, and preparation method thereofCHOI WON CHOON·Filed 2012·Granted Apr 26, 2016·6 cites·10 claims
- 1774US8747757B2Method and apparatus for preparation of granular polysiliconKIM HEE YOUNG·Filed 2007·Granted Jun 10, 2014·1 cites·17 claims
- 1873US7923358B2Methods for preparation of high-purity polysilicon rods using a metallic core meansKOREA RES INST CHEM TECH·Filed 2009·Granted Apr 12, 2011·5 cites·20 claims
- 1972US9764960B2Method and apparatus for preparation of granular polysiliconKOREA RES INST CHEMICAL TECH·Filed 2014·Granted Sep 19, 2017·0 cites·14 claims
- 2072US9694312B2Carbon dioxide capture apparatusKOREA RES INST CHEMICAL TECH·Filed 2014·Granted Jul 4, 2017·2 cites·10 claims
- 2171US11148123B2Catalyst for producing olefin, and continuous reaction-regeneration olefin producing method using the catalystSK GAS CO LTD·Filed 2017·Granted Oct 19, 2021·1 cites·18 claims
- 2270US7663013B2Solid acid catalyst for producing light olefins and process using the sameSK ENERGY CO LTD·Filed 2008·Granted Feb 16, 2010·2 cites·9 claims
- 2365US7718840B2Process for production of light olefins from hydrocarbon feedstockSK ENERGY CO LTD·Filed 2006·Granted May 18, 2010·3 cites·7 claims
- 2461US2010040803A1Apparatus and methods for preparation of high-purity silicon rods using mixed core meansKIM HEE YOUNG·Filed 2009·Application pending·0 cites
- 2557US11865514B2Catalyst for producing olefin, including oxygen carrier material and dehydrogenation catalystSK GAS CO LTD·Filed 2019·Granted Jan 9, 2024·0 cites·1 claims
- 2657US11684907B2Catalyst having enhanced conversion and selectivity for manufacturing olefin, and manufacturing method therofSK GAS CO LTD·Filed 2019·Granted Jun 27, 2023·0 cites·6 claims
- 2756US12441670B2Method for producing olefins using novel catalyst and circulating fluidized bed processSK GAS CO LTD·Filed 2021·Granted Oct 14, 2025·0 cites·20 claims
- 2856US9138730B2Cation-exchanged zeolite catalyst and process for producing mono-iodo benzene through transiodination by using itSK CHEMICALS CO LTD·Filed 2012·Granted Sep 22, 2015·0 cites·7 claims
- 2956US8673802B2Catalyst for catalytic cracking of hydrocarbon, which is used in production of light olefin and production method thereofCHOO DAE HYUN·Filed 2009·Granted Mar 18, 2014·0 cites·12 claims
- 3055US9108180B2Cation-exchanged zeolite catalyst and process for producing mono-iodo benzene through transiodination by using itYI YONG-JIN·Filed 2009·Granted Aug 18, 2015·0 cites·6 claims
- 3153US2023381749A1Dehydrogenation catalyst for preparing olefin from alkane gas and method for producing sameSK GAS CO LTD·Filed 2021·Application pending·0 cites
- 3252US7906694B2Method of preparing mono-iodo benzene through transiodinationSK CHEMICALS CO LTD·Filed 2007·Granted Mar 15, 2011·0 cites·6 claims
- 3350US9604851B2Method for producing high silica zeolite using recovered silica filtrate, and high silica zeolite produced according to said methodKOREA RES INST CHEMICAL TECH·Filed 2015·Granted Mar 28, 2017·0 cites·8 claims
- 3449US11439982B2Method of producing olefin using circulating fluidized bed processSK GAS CO LTD·Filed 2019·Granted Sep 13, 2022·0 cites·26 claims
- 3549US2023127784A1Dehydrogenation catalyst for production of olefins from alkane gases and preparation method thereofSK GAS CO LTD·Filed 2020·Application pending·0 cites
- 3648US10821432B2Olefin production method comprising reduction pretreatmentSK GAS CO LTD·Filed 2018·Granted Nov 3, 2020·0 cites·15 claims
- 3748US10226757B2Method for surface-modifying metal silicide, and method and apparatus for preparing trichlorosilane using surface-modified metal silicideKOREA RES INST CHEMICAL TECH·Filed 2015·Granted Mar 12, 2019·0 cites·13 claims
- 3848US10131850B2Naphtha and methanol mixed catalytic cracking reaction processKOREA RES INST CHEMICAL TECH·Filed 2015·Granted Nov 20, 2018·0 cites·17 claims
- 3948US2022401930A1Dehydrogenation catalyst for producing olefins from alkane gas and preparation method thereofSK GAS CO LTD·Filed 2020·Application pending·0 cites
- 4043US10737990B2Olefin production method using circulating fluidized bed processSK GAS CO LTD·Filed 2018·Granted Aug 11, 2020·0 cites·14 claims
- 4142US2006240256A1Nano-structured metal-carbon composite and process for preparation thereofKOREA ADVANCED INST SCI & TECH·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →