Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8172932 | Connecting tube having dust sensing function for use in vacuum cleaner | Jang-keun Oh, Min-ha Kim, Jung-gyun Han, Seung-Yong Cha | 2012-05-08 |
| 7717973 | Cyclone dust-separating apparatus of vacuum cleaner | Jang-keun Oh, Tak-soo Kim, Young Jun Cho | 2010-05-18 |
| 7640625 | Vacuum cleaner | Jang-keun Oh, Seung-Yong Cha | 2010-01-05 |
| 7637973 | Vacuum cleaner in which a dust bag or a cyclone dust collecting apparatus is selectively mounted | Jang-keun Oh, Seung-Yong Cha | 2009-12-29 |
| 7611558 | Dust compressing apparatus of vacuum cleaner | Jang-keun Oh, Seung-Yong Cha | 2009-11-03 |
| 7562414 | Dust sensing unit for use in vacuum cleaner | Jang-keun Oh, Min-ha Kim, Jung-gyun Han, Seung-Yong Cha | 2009-07-21 |
| 6598238 | Jaw protecting apparatus of helmet | Wan-Ki Hong, Kwang-Moon Choi, Jung Hwan Park | 2003-07-29 |
| 5953787 | Suction globe of a vacuum cleaner | — | 1999-09-21 |
| 4599823 | Flea catcher | — | 1986-07-15 |