| Patent | Date |
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Catalyst For Preparing 1,2-pentanediol And Method For Preparing 1,2-pentanediol By Using Same
App 20210346873 - HWANG; Young Kyu ; et al. | 2021-11-11 |
Preparing Method For 5-alkoxymethylfurfural
App 20210253545 - HWANG; Dong Won ; et al. | 2021-08-19 |
Heterogeneous Catalyst Complex For Carbon Dioxide Conversion
App 20210146344 - HWANG; Young Kyu ; et al. | 2021-05-20 |
Olefin metathesis reaction catalyst and preparation method therefor
Grant 10,766,019 - Jeon , et al. Sep | 2020-09-08 |
Secondary battery including organic-inorganic hybrid nanoporous material as water adsorbent
Grant 10,644,350 - Chang , et al. | 2020-05-05 |
Olefin Metathesis Reaction Catalyst And Preparation Method Therefor
App 20190217277 - Jeon; Jong Yeol ; et al. | 2019-07-18 |
Method for oligomerization of ethylene
Grant 10,329,211 - Hwang , et al. | 2019-06-25 |
Method and apparatus for preparation of lactide using lactide purification process
Grant 10,253,012 - Hwang , et al. | 2019-04-09 |
Method for preparing fructose or xylulose from biomass containing glucose or xylose using butanol, and method for separating the same
Grant 10,227,668 - Hwang , et al. | 2019-03-12 |
Zirconium-based metal-organic frameworks as catalyst for transfer hydrogenation
Grant 10,195,592 - Hwang , et al. Fe | 2019-02-05 |
Method For Preparation Of Mannitol From Fructose Using Butanol As Solvent
App 20180339955 - HWANG; Dong Won ; et al. | 2018-11-29 |
Method for preparation of mannitol from fructose using butanol as solvent
Grant 10,138,185 - Hwang , et al. Nov | 2018-11-27 |
Secondary Battery Including Organic-inorganic Hybrid Nanoporous Material As Water Adsorbent
App 20180261882 - CHANG; Jong San ; et al. | 2018-09-13 |
Method for preparing furan derivatives from biomass
Grant 9,988,362 - Hwang , et al. June 5, 2 | 2018-06-05 |
Method For Preparing Fructose Or Xylulose From Biomass Containing Glucose Or Xylose Using Butanol, And Method For Separating The Same
App 20180002769 - HWANG; Dong Won ; et al. | 2018-01-04 |
Method For Oligomerization Of Ethylene
App 20170327437 - HWANG; Dong Won ; et al. | 2017-11-16 |
Zirconium-based Metal-organic Frameworks As Catalyst For Transfer Hydrogenation
App 20170320790 - Hwang; Young Kyu ; et al. | 2017-11-09 |
Inorganic-organic hybrid nanoporous material with nitrogen selective adsorptivity and method for separating nitrogen-containing gas mixture using the same
Grant 9,687,772 - Chang , et al. June 27, 2 | 2017-06-27 |
Method And Apparatus For Preparation Of Lactide Using Lactide Purification Process
App 20170101390 - HWANG; Dong Won ; et al. | 2017-04-13 |
Method for producing lactide directly from lactic acid and a catalyst used therein
Grant 9,561,492 - Hwang , et al. February 7, 2 | 2017-02-07 |
Method for producing lactide directly from lactic acid and a catalyst used therein
Grant 9,539,561 - Hwang , et al. January 10, 2 | 2017-01-10 |
Method For Preparing Furan Derivatives From Biomass
App 20160304480 - HWANG; Dong Won ; et al. | 2016-10-20 |
Complex comprising crystalline hybrid nanoporous material powder
Grant 9,302,258 - Chang , et al. April 5, 2 | 2016-04-05 |
Inorganic-organic Hybrid Nanoporous Material With Nitrogen Selective Adsorptivity And Method For Separating Nitrogen-contaning Gas Mixture Using The Same
App 20160089637 - Chang; Jong-San ; et al. | 2016-03-31 |
Method For Producing Lactide Directly From Lactic Acid And A Catalyst Used Therein
App 20160016151 - HWANG; Dong Won ; et al. | 2016-01-21 |
Method For Recovering Indium From Indium Containing Solution Or Mixture
App 20150292058 - Lee; U-Hwang ; et al. | 2015-10-15 |
Method For Producing Lactide Directly From Lactic Acid And A Catalyst Used Therein
App 20150239863 - Hwang; Dong Won ; et al. | 2015-08-27 |
Apparatus for treating air by using porous organic-inorganic hybrid materials as an absorbent
Grant 9,038,409 - Hwang , et al. May 26, 2 | 2015-05-26 |
Recovery method of highly pure lactic acid and alkyl lactate
Grant 9,012,685 - Hwang , et al. April 21, 2 | 2015-04-21 |
Complex Comprising Crystalline Hybrid Nanoporous Material Powder
App 20140287235 - Chang; Jong-San ; et al. | 2014-09-25 |
Porous organic-inorganic hybrid materials with crystallinity and method for preparing thereof
Grant 8,507,399 - Hwang , et al. August 13, 2 | 2013-08-13 |
Porous Organic-inorganic Hybrid Materials With Crystallinity And Method For Preparing Thereof
App 20120289399 - HWANG; Young Kyu ; et al. | 2012-11-15 |
Porous organic-inorganic hybrid materials with crystallinity and method for preparing thereof
Grant 8,252,950 - Hwang , et al. August 28, 2 | 2012-08-28 |
Recovery Method Of Highly Pure Lactic Acid And Alkyl Lactate
App 20120142945 - HWANG; Dong Won ; et al. | 2012-06-07 |
Porous Organic-Inorganic Hybrid Materials with Crystallinity and Method for Preparing Thereof
App 20110118490 - HWANG; Young Kyu ; et al. | 2011-05-19 |
Composition for etching silicon oxide and method of forming a contact hole using the same
App 20110073801 - Hwang; Dong-Won ; et al. | 2011-03-31 |
Apparatus for Treating Air
App 20110067426 - HWANG; Young Kyu ; et al. | 2011-03-24 |
Composition for etching silicon oxide and method of forming a contact hole using the same
Grant 7,879,736 - Hwang , et al. February 1, 2 | 2011-02-01 |
Method of forming contact hole and method of manufacturing semiconductor memory device using the same
App 20090130842 - Hwang; Dong-Won ; et al. | 2009-05-21 |
Composition For Etching Silicon Oxide And Method Of Forming A Contact Hole Using The Same
App 20080121622 - HWANG; Dong-Won ; et al. | 2008-05-29 |
Etching solution for silicon oxide method of manufacturing a semiconductor device using the same
Grant 7,351,667 - Hwang , et al. April 1, 2 | 2008-04-01 |
Apparatus for treating substrates with phosphoric acid solution and method for regenerating the phosphoric acid solution employed therein
App 20070102023 - Yi; Hun-jung ; et al. | 2007-05-10 |
Etching solution for silicon oxide and method of manufacturing a semiconductor device using the same
App 20070090325 - Hwang; Dong-Won ; et al. | 2007-04-26 |
Composition and methods removing polysilicon
App 20070037400 - Hwang; Dong-Won ; et al. | 2007-02-15 |
Method of measuring a level of contamination in a chemical solution and systems thereof
App 20060160239 - Lee; Sung-Jae ; et al. | 2006-07-20 |
Method of removing a low-k layer and method of recycling a wafer using the same
App 20060154484 - Hwang; Dong-Won ; et al. | 2006-07-13 |
Methods of monitoring rinsing solutions and related systems and reagents
App 20050227363 - Hwang, Dong-won ; et al. | 2005-10-13 |
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