Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6342637 | Diamine hole transport agent and organic electroluminescent device containing same | Youngkoo Kim, Jae-Gyoung Lee, Dong Kwon Choi | 2002-01-29 |
| 6337404 | Diamine hole transport agent and organic electroluminescent device containing same | Youngkyoo Kim, Jae-Gyoung Lee, Dong Kwon Choi | 2002-01-08 |