Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9757732 | Paper shredder | Hyun-Joo Ahn | 2017-09-12 |
| 8403246 | Shredder and method of shredding paper | Hwa Yong Seo, Hak Hyun Kim | 2013-03-26 |
| 7553224 | Coin sorting apparatus and operation method of the same | Hun Choi, Han-Sung Park, Un Ki Kim | 2009-06-30 |