Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9920667 | Water drain system for oil reserve tank | Chi Myong Kwon, Jang Heon Lee, Hee-Duck Park, Hye Min CHOI, Yoo Keun Kim +1 more | 2018-03-20 |
| 6643412 | Method and apparatus for high speed convolution | Cheol Woo Kim | 2003-11-04 |