Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7488363 | Dust collection unit of vacuum cleaner | Man Tae Hwang, Young-Ho Kim, Jung Bae Hwang, Min Su Park | 2009-02-10 |
| 7485164 | Dust collection unit for vacuum cleaner | Man Tae Hwang, Young-Ho Kim, Jung Bae Hwang, Min Su Park | 2009-02-03 |
| 7442219 | Dust collection unit for vacuum cleaner | Man Tae Hwang, Young-Ho Kim, Jung Bae Hwang, Min Su Park | 2008-10-28 |
| 7325274 | Vacuum cleaner with dust collecting device | — | 2008-02-05 |
| 6695352 | Extension tube in vacuum cleaner | Deog Bae Park, Man Tae Hwang | 2004-02-24 |
| 6161251 | Suction nozzle for vacuum cleaner | Dong-yool Lee, Ju Han Yoon, Yong Bok Choi, Kyoung Suk Lim, Sang Jun Park | 2000-12-19 |