Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10486080 | Distillation device | Yeon Uk Choo, Sung Kyu Lee, Tae Woo Kim, Joon Ho Shin | 2019-11-26 |
| 10000162 | Speaker device for vehicle, and vehicle having the speaker device | Youngkyu Kim, Jung Uk Noh | 2018-06-19 |
| 9758458 | Method for purifying isopropyl alcohol | Sung Kyu Lee, Joon Ho Shin, Jong Ku Lee | 2017-09-12 |
| 9573869 | Bisphenol A preparation apparatus and preparation method | Joon Ho Shin, Tae Woo Kim, Jong Ku Lee, Se-Ho Park | 2017-02-21 |
| 8689723 | Disk for horn of vehicle | Ki Sang Chae | 2014-04-08 |
| 8013060 | Method for concentrating organic silicate polymer solution | Sun-hyuk Choi, Ji Ho YOON, Jung Uk Choi | 2011-09-06 |
| 7910780 | Method for purifying terephthalaldehyde | Seong Hoon Kang, In Kyu Park, Yeong-Dae Kim | 2011-03-22 |
| 7714173 | Method for purifying terephthalaldehyde | Seong Hoon Kang, In Kyu Park, Young-Dae Kim, Jong Hyun Chae | 2010-05-11 |
| 7417171 | Method for preparing an aromatic dialdehyde and manufacturing system for the same | Jong Hyun Chae, Won-Ho Lee, Dong-Il Lee, In Kyu Park, Yong-Jin Choe +3 more | 2008-08-26 |