Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6580090 | Organic light-emitting devices | Siegfried Johannes Barth, Tilman Beierlein, Heike E. Riel, Walter Riess | 2003-06-17 |
| 6548961 | Organic light emitting devices | Siegfried Johannes Barth, Tilman Beierlein, Heike E. Riel, Walter Riess | 2003-04-15 |