Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8697792 | Migration-free coloured copolycondensates for colouring polymers | Thomas Ruch, Peter Werner Sutter, Christoph Krebs, Ursula Luterbacher | 2014-04-15 |
| 8691002 | Organic black pigments and their preparation | Thomas Ruch, Ralf Bauer, Christoph Krebs, Ursula Luterbacher, Marc Maurer | 2014-04-08 |
| 8674006 | Black pigment dispersion | Margherita Fontana, Marian Lanz, Frank Oliver Heinrich Pirrung, Andreas GERNANDT, Dario Perera +3 more | 2014-03-18 |
| 8193528 | Azapyrenes for electronic applications | Thomas Schäfer, Kristina Bardon, Andrea Ricci, Natalia Chebotareva | 2012-06-05 |
| 7923540 | 2-[[1-[[(2,3-dihydro-2-oxo-1H-benzimidazol-5-yl)amino]carbonyl]-2-oxopropyl]azo]-benzoic acid and a process for its preparation | Hans Reichert, Max Hügin, Ulrich Veith, Sibylle Soder | 2011-04-12 |
| 7731791 | Use of pyrimido[5,4-g]pteridines as shading component in color filter colorant compositions | Takashi Deno, Joachim Voigt | 2010-06-08 |
| 7217803 | Benzimidazole-pyridone-based azo dyes | Leonhard Feiler, Thomas Raimann, Max Hügin | 2007-05-15 |
| 6600042 | Process for the preparation of pyrimido[5,4-g]pteridine derivatives | Max Hügin, Karl-Heinz Muller | 2003-07-29 |
| 6126735 | Process for coloring high molecular weight organic material and polycyclic pigments | Max Hügin | 2000-10-03 |
| 6120956 | Yellow pteridine having a hue-angle of at least 98 | Mathias Düggeli, Max Hügin | 2000-09-19 |
| 5785720 | Process for coloring high molecular weight material with polycyclic compounds | Thomas Ruch | 1998-07-28 |
| 5476949 | Finely divided highly transparent diketopyrrolopyrrole pigments | Olof Wallquist, Gary Wooden, Ingo Schloder | 1995-12-19 |
| 5380870 | Mixed crystals of sulfonated diketopyrrolopyrroles | Stefan Hari, Olof Wallquist, Fritz Herren | 1995-01-10 |
| 5302704 | Azodyes containing a sulfoacetoacetic acid anilide coupling component | Jean-Marie Adam | 1994-04-12 |