Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6445879 | Apparatus and method for braking a washing machine | Sang-Chul Youn, Joo Hwan Lee, In Hwan Ra, Beom Seok Ko | 2002-09-03 |
| 6369538 | Method for braking a washing machine | Sang-Chul Youn, Joo Hwan Lee, In Hwan Ra | 2002-04-09 |