Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8402658 | Manufacturing method of compressor pulley | Heon Sang Lee, Seok Je Jeong, Gyeong Min Kim | 2013-03-26 |
| 6252021 | Process for producing polyisobutene using a catalytic system comprising transition metal-benzene derivative compound-methylaluminoxane | Kwanyoung Lee, Pil Sung Kim, Il Sang Maeng | 2001-06-26 |