Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6869696 | Organic red electro-luminescent device including a heterocyclic emitter | Andreas Richter, Dietmar Keil | 2005-03-22 |
| 6844089 | Organic red electro-luminescent device and dopant | Andreas Richter, Dietmar Keil | 2005-01-18 |