Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6933063 | Spirobifluorene compounds, electroluminescence polymer and electroluminescence element having the same | Jeong Ik Lee, Hyoyoung Lee, Hye Yong Chu, Lee-Mi Do, Seong Hyun Kim +1 more | 2005-08-23 |
| 6844088 | Bisphenylene-spirobifluorene compounds, method for synthesizing the same, and electroluminescence material and device having the same | Hyoyoung Lee, Hye Yong Chu, Jeong Ik Lee, Seong Hyun Kim, Lee-Mi Do +1 more | 2005-01-18 |