Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6890707 | Color photographic print material | Ralf Weimann, Markus Geiger, Cuong Ly, Beate Weber, Heinz Wiesen | 2005-05-10 |
| 6806042 | Color photographic print material | Ralf Weimann, Markus Geiger, Cuong Ly, Beate Weber, Heinz Wiesen | 2004-10-19 |
| 6783924 | Colour photographic silver halide material | Ralf Weimann, Markus Geiger, Cuong Ly, Beate Weber, Heinz Wiesen | 2004-08-31 |
| 6228568 | Color photographic recording material | Thomas Stetzer, Hans Langen, Heinz-Dieter Schutz, Hans-Joachim Schumann, Johannes Willsau +2 more | 2001-05-08 |
| 6057085 | Color photographic recording material | Hans Langen | 2000-05-02 |
| 6025121 | Color photographic recording material | Stefan Herrmann, Michael Missfeldt | 2000-02-15 |
| 5942382 | Color photographic recording material | Stefan Herrmann, Michael Missfeldt | 1999-08-24 |
| 5932402 | Color photographic recording material with improved mechanical properties and improved stability in a tropical climate | Heinz-Dieter Schutz, Rainer Scheerer | 1999-08-03 |
| 5776667 | Color photographic recording material having a yellow filter layer which contains an arylidene dye of isoxazolone as the yellow filter dye | Hans Ohlschlager, Hans Langen | 1998-07-07 |