Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6727644 | Organic light-emitting device having a color-neutral dopant in an emission layer and in a hole and/or electron transport sublayer | Tukaram K. Hatwar | 2004-04-27 |
| 6720090 | Organic light emitting diode devices with improved luminance efficiency | Jianmin Shi, Ching W. Tang | 2004-04-13 |
| 6692846 | Organic electroluminescent device having a stabilizing dopant in a hole-transport layer or in an electron-transport layer distant from the emission layer | Tukaram K. Hatwar | 2004-02-17 |