Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7717973 | Cyclone dust-separating apparatus of vacuum cleaner | Jang-keun Oh, Tak-soo Kim, Jin-gon Lee | 2010-05-18 |
| 7690485 | Power cord cooling apparatus for a vacuum cleaner | Tak-soo Kim | 2010-04-06 |
| 5789360 | Cleaning solution for use on a semiconductor wafer following chemical-mechanical polishing of the wafer and method for using same | Jae-inh Song, Heung-Soo Park, Young-bum Koh | 1998-08-04 |