Issued Patents 2005
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6873091 | Organic electroluminescent display device comprising an optical filter | Hans-Helmut Bechtel, Joachim Opitz, Henricus Franciscus Johannus Jacobus Van Tongeren | 2005-03-29 |