Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8398948 | Method of preparing carbon nanotube from liquid phased-carbon source | Beyong Hwan Ryu, Ki Jeong Kong, Hyun Ju Chang, Young-min Choi, Jae Do Lee +2 more | 2013-03-19 |
| 7553224 | Coin sorting apparatus and operation method of the same | Hun Choi, Dae Seung Woo, Un Ki Kim | 2009-06-30 |
| 7500627 | Shredder | Jong Gyu Kim | 2009-03-10 |