Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8032982 | Upright vacuum cleaner having suction path switching valve | Byung-jo Lee, Tae-gwang Kim | 2011-10-11 |
| 7950102 | Upright vacuum cleaner having steering unit | Byung-jo Lee, Tae-gwang Kim, See-hyun Kim | 2011-05-31 |
| 7879142 | Cyclone dust collector and vacuum cleaner | Jung-gyun Han, Byung-jo Lee, Tae-gwang Kim, See-hyun Kim | 2011-02-01 |
| 7862637 | Multi-cyclone dust separator | Jung-gyun Han, Byung-jo Lee, Tae-gwang Kim, See-hyun Kim, Sung-Soo Ahn | 2011-01-04 |