Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8032985 | Suction brush for vacuum cleaner | — | 2011-10-11 |
| 7941896 | Upright vacuum cleaner capable of adjusting height of suction port assembly | Chul-Woo Park | 2011-05-17 |
| 7934286 | Upright vacuum cleaner with a single frame support for a separable cleaner body | Dong-hun Yoo | 2011-05-03 |
| 7879120 | Vacuum cleaner | Dong-hun Yoo, Min-ha Kim | 2011-02-01 |