Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11249060 | Method for quantitatively analyzing residual Cl in zinc ferrite | Sangwoo Kim, Sumin Na, Jieun Kim, Hyun Woo Nho | 2022-02-15 |
| 7740812 | Method and apparatus for separating aromatic dialdehyde | Jong Hyun Chae, Won-Ho Lee, Dong-Il Lee | 2010-06-22 |
| 7696387 | Method for preparing catalyst for partial oxidation of methylbenzenes | Won-Ho Lee, Dong-Il Lee, Jong Hyun Chae | 2010-04-13 |
| 7538253 | Method for preparing catalyst for partial oxidation of methylbenzenes | Won-Ho Lee, Dong-Il Lee, Jong Hyun Chae | 2009-05-26 |
| 7429682 | Catalyst for partial oxidation of methylbenzenes, method for preparing the same, and method for producing aromatic aldehydes using the same | Won-Ho Lee, Dong-Il Lee, Jong Hyun Chae, Ji Hyang Son, In Kyu Park +1 more | 2008-09-30 |
| 7393983 | Method and apparatus for separating aromatic dialdehyde | Jong Hyun Chae, Won-Ho Lee, Dong-Il Lee | 2008-07-01 |
| 7183442 | Purification method of terephthal aldehyde | Won-Ho Lee, Jong Hyun Chae, Dong-Il Lee | 2007-02-27 |