Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8870988 | Dust collector for a vacuum cleaner having a dust removal function | Jang-keun Oh | 2014-10-28 |
| 7975790 | Wheel driving assembly of a moving apparatus | Myeong Ho Kim, Sam-jong Jeung, Jeong-gon Song, Ju-sang Lee, Heung-Yi Kim +6 more | 2011-07-12 |
| 7937802 | Vacuum cleaner for use in both upright form and canister form | Dong-hun Yoo, Jeong-hee Cho, Myoung-sun Choung, Yun Hee Park | 2011-05-10 |
| 7309368 | Cyclone dust-collecting apparatus | Jang-keun Oh | 2007-12-18 |
| 7152277 | Filter assembly for cyclone type dust collecting apparatus of a vacuum cleaner | Jang-keun Oh | 2006-12-26 |
| 7105034 | Cyclone-type dust collecting apparatus for vacuum cleaner | Jang-keun Oh | 2006-09-12 |
| 6076701 | Automatic vending machine | — | 2000-06-20 |
| 6000521 | Slidable door for a bill inlet | — | 1999-12-14 |