Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9861932 | Polymer membrane for gas separation or enrichment comprising hybrid nanoporous material, uses thereof, and a preparation method thereof | Jong-San Chang, Young Kyu Hwang, You In Park, Hye Rim Song, Seung Eun Nam +3 more | 2018-01-09 |
| 9844750 | Cyclical method of producing high-purity nitrogen and optionally a high-purity hydrocarbon from a feedstock containing nitrogen and a hydrocarbon | Francis Luck, Catherine Leroi, Alvaro Fernandez, Ana Mafalda Almeida Peixoto Ribeiro, Joao Carlos Godinho De Faria Dos Santos +4 more | 2017-12-19 |
| 9687772 | Inorganic-organic hybrid nanoporous material with nitrogen selective adsorptivity and method for separating nitrogen-containing gas mixture using the same | Jong-San Chang, Young Kyu Hwang, Ji Woong Yoon, Do Young Hong, Sukyung Lee +4 more | 2017-06-27 |
| 9561492 | Method for producing lactide directly from lactic acid and a catalyst used therein | Dong Won Hwang, Jong-San Chang, Pravin Pandharinath Upare, Young Kyu Hwang | 2017-02-07 |
| 9539561 | Method for producing lactide directly from lactic acid and a catalyst used therein | Dong Won Hwang, Jong-San Chang, Pravin Pandharinath Upare, Young Kyu Hwang | 2017-01-10 |
| 9302258 | Complex comprising crystalline hybrid nanoporous material powder | Jong-San Chang, Young Kyu Hwang, Dong Won Hwang, You-Kyong Seo, Ji Sun Lee +2 more | 2016-04-05 |
| 9175025 | Method for preparing porous organic-inorganic hybrid materials | Jong-San Chang, Young Kyu Hwang, You-Kyong Seo, Christian Serre, Patricia Horcajada Cortes +3 more | 2015-11-03 |
| 9012685 | Recovery method of highly pure lactic acid and alkyl lactate | Dong Won Hwang, Jong-San Chang, Young Kyu Hwang, HyoJin Gwak | 2015-04-21 |