Issued Patents All Time
Showing 51–66 of 66 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7470299 | Multi-cyclone dust separator and a vacuum cleaner using the same | Jang-keun Oh, Min-ha Kim | 2008-12-30 |
| 7462212 | Cyclone dust separating apparatus for vacuum cleaner and vacuum cleaner having the same | Jang-keun Oh, Min-ha Kim | 2008-12-09 |
| 7419521 | Dust collecting apparatus for a vacuum cleaner | Jang-keun Oh | 2008-09-02 |
| 7410517 | Dust-separating apparatus for vacuum cleaner | Jang-keun Oh | 2008-08-12 |
| 7407524 | Cyclone dust-collecting apparatus and a vacuum cleaner having the same | Jang-keun Oh | 2008-08-05 |
| 7380308 | Vacuum cleaner | Jang-keun Oh, Ki-man Kim, Kyoung-woung Kim | 2008-06-03 |
| 7381248 | Cyclone dust-separating apparatus with discharge electrodes | Min-ha Kim, Jang-keun Oh | 2008-06-03 |
| 7381247 | Cyclone dust collecting device for vacuum cleaner | Jang-keun Oh, Min-ha Kim | 2008-06-03 |
| 7361200 | Cyclone dust separating apparatus and vacuum cleaner having the same | Jang-keun Oh | 2008-04-22 |
| 7332008 | Cyclone dust collecting apparatus and a vacuum cleaner having the same | Jang-keun Oh | 2008-02-19 |
| 7326268 | Multi cyclone vessel dust collecting apparatus for vacuum cleaner | Jang-keun Oh | 2008-02-05 |
| 7288129 | Cyclone dust collector and handle assembly for vacuum cleaner having the same | Jang-keun Oh, Hyun Ju Lee | 2007-10-30 |
| 7273506 | Cyclone dust collecting apparatus and vacuum cleaner using the same | Jang-keun Oh | 2007-09-25 |
| 7261754 | Cyclone dust collecting apparatus for a vacuum cleaner | Jang-keun Oh | 2007-08-28 |
| 7169201 | Cyclone separating apparatus and a vacuum cleaner having the same | Jang-keun Oh | 2007-01-30 |
| 7128770 | Cyclone dust-collector | Jang-keun Oh | 2006-10-31 |