Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7404231 | Dust container of upright type vacuum cleaner and supporting structure for cover thereof | — | 2008-07-29 |
| 6532622 | Brush head of vacuum cleaner | Chang-Woo Seon | 2003-03-18 |
| 5832559 | Multipurpose auxiliary brush for a vacuum cleaner | — | 1998-11-10 |
| 5826301 | Multipurpose auxiliary brush for a vacuum cleaner | Young Soon Kim | 1998-10-27 |
| 5622243 | Cord winder for a vacuum cleaner | — | 1997-04-22 |
| 5471707 | Assembly for a vacuum cleaner having a sound-absorbing system | — | 1995-12-05 |
| 5293664 | Low noise and less vibration vacuum cleaner | Moo-Saeng Lim, Chang Woo Son | 1994-03-15 |