Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6779229 | Versatile vacuum cleaner | Nam-Ho Lee, Jae-Duck Lee, Im Suk Choi | 2004-08-24 |
| 5504027 | Method for fabricating semiconductor memory devices | Jae Seung Jeong | 1996-04-02 |