Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9151504 | Cooking apparatus and method of manufacturing the same | Jeong Ho Lee, Kyu In Shim | 2015-10-06 |
| 8215232 | Cooking apparatus and cleaning method for the same | Jeong Ho Lee, Kyu In Shim | 2012-07-10 |
| 7310603 | Voice control apparatus of vacuum cleaner and method thereof | Sung Il Park, Chan Hee Hong, Hee-Suk Roh, Anatoli Tikhotski, Victor Redkov +4 more | 2007-12-18 |
| 6748622 | Water circulation cleaner | Hyeun Sik Nam | 2004-06-15 |
| 6484354 | Air circulation type vacuum cleaner | — | 2002-11-26 |
| 6484355 | Passage system of vacuum cleaner | Seong Ho Cho, Sung Il Park | 2002-11-26 |
| 6164939 | Scroll pump | Moon Ki Chung | 2000-12-26 |
| 5516262 | Automatic pump | Dong Ick Rhee | 1996-05-14 |
| 5210902 | Vacuum cleaner | Young-Chun Lee, Deok K. Park | 1993-05-18 |