Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8857010 | Vacuum cleaner having shredder | Jang-keun Kim, Kang-Doo Kim, Chang Hyun Park, Jae-jin Aum, Sung-cheol Lee +2 more | 2014-10-14 |
| 8522395 | Vacuum cleaner having shredder | Jang-keun Oh, Jun Hwa Lee, Sung-cheol Lee, Jae-jin Aum, Chang Hyun Park +2 more | 2013-09-03 |