Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6835468 | Fluorene based polymers and light emitting diodes fabricated with the same as light emitting material | Young Chul Kim, Jae-Min Hong, Jong Bok Kim, Doo Moon, Young Sei Park +1 more | 2004-12-28 |
| 6828362 | PTC composition and PTC device comprising it | Yong In Lee, Jong-Hawk Kim | 2004-12-07 |
| 6800381 | Fluorene compound, polymers thereof having a polyphenylene group, and EL element comprising the same | Sung-Hyun JUNG, Sang Won Son, Jong Bok Kim | 2004-10-05 |
| 6780950 | Pyrrole compounds, polymers thereof and EL element using the same | Sung-Hyun JUNG, Sang Won Son, Jae Hong Won | 2004-08-24 |
| 6716947 | Method for preparing dimethyl dipropargylmalonate polymer containing six-membered ring structure | Youn-Woo Lee, Jong-Sung Lim, Young Jae Hur | 2004-04-06 |