Inventor · disambiguated record
Jong-San Chang
Also filed as: CHANG JONG-SAN
44 granted patents·11 pending applications·457 citations·filing 1994–2024
98Inventor score
Files withKOREA RES INST CHEM TECH18KOREA RES INST CHEMICAL TECH14CHANG JONG-SAN7HWANG YOUNG KYU4SAMSUNG ELECTRONICS CO LTD3
Top patents by PatentIndex Score
55 records- 0195US8759245B2Method for preparing porous organic-inorganic hybrid materials, porous organic-inorganic hybrid materials obtained by the method and catalytic uses of the materialsCHANG JONG-SAN·Filed 2012·Granted Jun 24, 2014·22 cites·2 claims
- 0294US8173827B2Method for preparing porous organic-inorganic hybrid materials, porous organic-inorganic hybrid materials obtained by the method and catalytic uses of the materialsCHANG JONG-SAN·Filed 2009·Granted May 8, 2012·26 cites·11 claims
- 0392US7855299B2Preparation method of porous organic inorganic hybrid materialsKOREA RES INST CHEM TECH·Filed 2007·Granted Dec 21, 2010·14 cites·16 claims
- 0488US8252950B2Porous organic-inorganic hybrid materials with crystallinity and method for preparing thereofHWANG YOUNG KYU·Filed 2009·Granted Aug 28, 2012·11 cites·7 claims
- 0587US10195592B2Zirconium-based metal-organic frameworks as catalyst for transfer hydrogenationKOREA RES INST CHEMICAL TECH·Filed 2017·Granted Feb 5, 2019·3 cites·20 claims
- 0687US8507399B2Porous organic-inorganic hybrid materials with crystallinity and method for preparing thereofHWANG YOUNG KYU·Filed 2012·Granted Aug 13, 2013·6 cites·12 claims
- 0786US10644350B2Secondary battery including organic-inorganic hybrid nanoporous material as water adsorbentKOREA RES INST CHEMICAL TECH·Filed 2018·Granted May 5, 2020·2 cites·20 claims
- 0886US9012685B2Recovery method of highly pure lactic acid and alkyl lactateHWANG DONG WON·Filed 2011·Granted Apr 21, 2015·16 cites·19 claims
- 0986US7847134B2Process of producing monohydric alcohols from monocarboxylic acids or derivatives thereofKOREA RES INST CHEM TECH·Filed 2009·Granted Dec 7, 2010·9 cites·10 claims
- 1085US10138185B1Method for preparation of mannitol from fructose using butanol as solventKOREA RES INST CHEMICAL TECH·Filed 2018·Granted Nov 27, 2018·2 cites·7 claims
- 1184US5879645AMethod for removing nitrogen oxides in exhaust gas by selective catalytic reduction and catalyst for reduction of nitrogen oxidesKOREA RES INST CHEM TECH·Filed 1995·Granted Mar 9, 1999·82 cites·15 claims
- 1283US6191318B1Process for preparing hydroxylated aromatics by hydrogen and oxygenKOREA RES INST CHEM TECH·Filed 1999·Granted Feb 20, 2001·25 cites·13 claims
- 1382US10253012B2Method and apparatus for preparation of lactide using lactide purification processKOREA RES INST CHEMICAL TECH·Filed 2016·Granted Apr 9, 2019·2 cites·15 claims
- 1480US6566300B2Titania photocatalyst and its preparing methodKOREA RES INST CHEM TECH·Filed 2001·Granted May 20, 2003·22 cites·13 claims
- 1579US8926736B2Reducible porous crystalline hybrid solid for the separation of mixtures of molecules having different degrees and/or a different number of unsaturationsSERRE CHRISTIAN·Filed 2009·Granted Jan 6, 2015·7 cites·16 claims
- 1678US9539561B2Method for producing lactide directly from lactic acid and a catalyst used thereinKOREA RES INST CHEMICAL TECH·Filed 2013·Granted Jan 10, 2017·2 cites·5 claims
- 1778US5972305ADirect manufacturing method of hydrogen peroxideKOREA RES INST CHEM TECH·Filed 1998·Granted Oct 26, 1999·41 cites·7 claims
- 1877US9861932B2Polymer membrane for gas separation or enrichment comprising hybrid nanoporous material, uses thereof, and a preparation method thereofKOREA RES INST CHEMICAL TECH·Filed 2015·Granted Jan 9, 2018·2 cites·14 claims
- 1977US8980128B2Adsorbent for water adsorption and desorptionCHANG JONG-SAN·Filed 2011·Granted Mar 17, 2015·2 cites·13 claims
- 2077US7297652B2Method of preparing a nanoporous nickel phosphate molecular sieveKOREA RES INST CHEM TECH·Filed 2004·Granted Nov 20, 2007·15 cites·8 claims
- 2177US6037511ACatalyst for dehydrogenating aromatic with carbon dioxideKOREA RES INST CHEM TECH·Filed 1999·Granted Mar 14, 2000·18 cites·2 claims
- 2276US8598372B2Method for producing cyclicised compounds from organic acids having from 4 to 6 carbon atomsHWANG YOUNG KYU·Filed 2010·Granted Dec 3, 2013·2 cites·8 claims
- 2376US8569193B2Preparation of surface functionalized porous organic-inorganic hybrid materials or mesoporous materials with coordinatively unsaturated metal sites and catalytic applications thereofCHANG JONG-SAN·Filed 2007·Granted Oct 29, 2013·4 cites·16 claims
- 2476US8168813B2Porous organic-inorganic hybrid materials and adsorbent comprising the sameCHANG JONG-SAN·Filed 2009·Granted May 1, 2012·8 cites·27 claims
- 2575US5855815AProcess for producing a synthesis gas from carbon dioxideKOREA RES INST CHEM TECH·Filed 1994·Granted Jan 5, 1999·27 cites·20 claims
- 2674US8258317B2Catalyst for direct conversion of esters of lactic acid to lactide and the method for producing lactide using the sameCHANG JONG-SAN·Filed 2009·Granted Sep 4, 2012·1 cites·18 claims
- 2772US11266948B2Use of metal organic frameworks for H2O sorptionUNIV TEXAS·Filed 2019·Granted Mar 8, 2022·0 cites·14 claims
- 2872US6242380B1Process for preparing supported nickel catalyst for reforming hydrocarbonsKOREA RES INST CHEM TECH·Filed 1997·Granted Jun 5, 2001·26 cites·20 claims
- 2971US6528031B1Method for preparing noble metal-supported zeolite catalyst for catalytic reduction of nitrogen oxideKOREA RES INST CHEM TECH·Filed 1999·Granted Mar 4, 2003·35 cites·57 claims
- 3070US2022168689A1Use of metal organic frameworks for h2o sorptionUNIV TEXAS·Filed 2022·Application pending·0 cites
- 3169US9038409B2Apparatus for treating air by using porous organic-inorganic hybrid materials as an absorbentHWANG YOUNG KYU·Filed 2009·Granted May 26, 2015·2 cites·14 claims
- 3267US6034032ACatalyst for dehydrogenating aromatic hydrocarbons with carbon dioxideKOREA RESERARCH INST OF CHEMIC·Filed 1998·Granted Mar 7, 2000·13 cites·3 claims
- 3362US9175025B2Method for preparing porous organic-inorganic hybrid materialsLEE U-HWANG·Filed 2012·Granted Nov 3, 2015·2 cites·20 claims
- 3462US2024316536A1Catalyst for decomposing perfluorocompounds and method of preparing sameHEESUNG CATALYSTS CORP·Filed 2024·Application pending·0 cites
- 3561US12400879B2Gas treatment system and gas treatment method using the sameSAMSUNG ELECTRONICS CO LTD·Filed 2022·Granted Aug 26, 2025·0 cites·20 claims
- 3661US9302258B2Complex comprising crystalline hybrid nanoporous material powderCHANG JONG-SAN·Filed 2012·Granted Apr 5, 2016·2 cites·13 claims
- 3760US9561492B2Method for producing lactide directly from lactic acid and a catalyst used thereinKOREA RES INST CHEMICAL TECH·Filed 2015·Granted Feb 7, 2017·0 cites·3 claims
- 3855US7914762B2Preparation method of chalcopyrite-type compounds with microwave irradiationKOREA RES INST CHEM TECH·Filed 2007·Granted Mar 29, 2011·4 cites·14 claims
- 3954US10227668B2Method for preparing fructose or xylulose from biomass containing glucose or xylose using butanol, and method for separating the sameKOREA RES INST CHEMICAL TECH·Filed 2017·Granted Mar 12, 2019·0 cites·17 claims
- 4054US2009130411A1Adsorbent for Water Adsorption and DesorptionKOREA RES INST CHEM TECH·Filed 2007·Application pending·0 cites
- 4153US9687772B2Inorganic-organic hybrid nanoporous material with nitrogen selective adsorptivity and method for separating nitrogen-containing gas mixture using the sameKOREA RES INST CHEMICAL TECH·Filed 2015·Granted Jun 27, 2017·0 cites·19 claims
- 4252US11801496B2Catalyst for preparing 1,2-pentanediol and method for preparing 1,2-pentanediol by using sameKOREA RES INST CHEMICAL TECH·Filed 2019·Granted Oct 31, 2023·0 cites·7 claims
- 4352US2024042385A1Gas treatment system, semiconductor process system including the same, and gas treatment method using the sameSAMSUNG ELECTRONICS CO LTD·Filed 2023·Application pending·0 cites
- 4452US2024096649A1Semiconductor process system and gas treatment methodSAMSUNG ELECTRONICS CO LTD·Filed 2023·Application pending·0 cites
- 4551US11285455B2Organic-inorganic hybrid nanoporous material containing intramolecular acid anhydride functional group, composition for adsorption comprising the same, and use thereof for separation of hydrocarbon gas mixtureKOREA RES INST CHEMICAL TECH·Filed 2017·Granted Mar 29, 2022·0 cites·17 claims
- 4651US7235508B2Metal-incorporated nanoporous nickel phosphate molecular sieve and its preparation methodKOREA RES INST CHEM TECH·Filed 2004·Granted Jun 26, 2007·2 cites·11 claims
- 4748US2022001328A1Energy-saving air dryer, and method for producing dry air using the sameKOREA RES INST CHEMICAL TECH·Filed 2019·Application pending·0 cites
- 4847US2007014715A1Method and apparatus for the preparation of porous materials and mixed metal oxidesKOREA RES INST CHEM TECH·Filed 2006·Application pending·0 cites
- 4947US2007012183A1Method and apparatus for the continuous preparation of porous materials and mixed metal oxides using continuous stirred reactorsKOREA RES INST CHEM TECH·Filed 2006·Application pending·0 cites
- 5046US9988362B2Method for preparing furan derivatives from biomassKOREA RES INST CHEMICAL TECH·Filed 2016·Granted Jun 5, 2018·0 cites·11 claims
Showing the top 50 of 55 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →