Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10662132 | Method for preparing ethylene in propylene preparation process using propane dehydrogenation reaction | Bu Young Jo, Won-il KIM, Tae Wan Kim, Jong Chan Jang, Jung Ill Cho +1 more | 2020-05-26 |
| 8993474 | Dehydrogenation catalyst | Jin Soon Choi, Won-il KIM, Hyong Lim Koh | 2015-03-31 |
| 8288586 | Method and apparatus for separating and refining high purity 2,6-naphthalene dicarboxylic acid using crystallization | Yang-Ho Cheon | 2012-10-16 |
| 7935856 | Preparation method of 1,5-dimethyltetralin using dealuminated zeolite beta catalyst | Byoung-Whan Soh | 2011-05-03 |
| 7795489 | Method for obtaining 2,6-dimethylnaphthalene using isomerization and crystallization processes | Yang-Ho Chenon, Ik-Hyun Kwon | 2010-09-14 |
| 7718835 | Dehydrogenation process of dimethylnaphthalene using metal catalyst | Hyun-Soo Kim, Ik-Hyun Kwon | 2010-05-18 |
| 7605296 | Method for separating and purifying 2,6-dimethylnaphthalene | Yang-Ho Chenon | 2009-10-20 |
| 7396457 | Apparatus and method for recovering acetic acid and catalyst in process for preparation of 2,6-naphthalenedicarboxylic acid | Ik-Hyun Kwon, Byung-Jun Song, Jong-Cheul Ji | 2008-07-08 |
| 6519416 | Magnet recording/reproducing apparatus with video camera, suited for photorecording without attending camera operator | Bong-Rae Park, Allen LeRoy Limberg | 2003-02-11 |
| 5604551 | Magnetic recording/reproducing apparatus with video camera, suited for photorecording without attending camera operator | Bong-Rae Park, Allen LeRoy Limberg | 1997-02-18 |