Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6458668 | Method for manufacturing hetero junction bipolar transistor | Sang Hoon Cheon, Song Cheol Hong, Heung Seob Koo, Sea Houng Cho | 2002-10-01 |
| 6433190 | 3,6-Di(3′,5′-bis(fluoroalkyl) phenyl) pyromellitic dianhydride and method for the preparation thereof | Bum-Young Myung | 2002-08-13 |
| 6342638 | Triarylphosphine oxide derivatives containing fluorine substituents | Kwang Un Jeong | 2002-01-29 |