Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8057858 | Method for improving the corrosion resistance and lightfastness of painted aluminum oxide layers | Andreas Dierdorf, Stefan Brand, Hubert Liebe, Frank Osterod, Mark A. Jozefowicz | 2011-11-15 |
| 7301013 | Azo compounds | Robert Egli, Knut Göke | 2007-11-27 |
| 7101983 | Azo dyes | Robert Egli, Knut Göke | 2006-09-05 |
| 7097699 | Composition for printing recording materials | Robert Egli, Hans-Tobias Macholdt, Reinhard Pedrazzi | 2006-08-29 |