Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7774898 | Vacuum cleaner and method for reducing noise generated thereby | Jae Man Joo, Jun Hwa Lee, Tae Seok Yoon | 2010-08-17 |
| 7610654 | Vacuum cleaner | Jea Won Lee, Jae Man Joo, Jun Hwa Lee, Tae Seok Yoon | 2009-11-03 |
| 7449039 | Cyclonic cleaner | Jun Hwa Lee | 2008-11-11 |
| 7438737 | Vacuum cleaner | Hwa-gyu Song, Jun Hwa Lee, Jae Man Joo, Soo Yong Choi | 2008-10-21 |
| 7334987 | Fan assembly for vacuum cleaner | Hyun-jun Oh, Hwa-gyu Song, Sung-cheol Lee | 2008-02-26 |
| 7245105 | Single-phase induction motor and method for reducing noise in the same | Jae Man Joo, Jun Hwa Lee | 2007-07-17 |