Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8287776 | Preparation of a photochromic ink | Marc Maurer, Thomas Raimann, Leonhard Feiler, Bruno Inderbitzin, Andre Fuchs | 2012-10-16 |
| 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, Ulrich Veith, Sibylle Soder, Thomas Eichenberger | 2011-04-12 |
| 7217803 | Benzimidazole-pyridone-based azo dyes | Leonhard Feiler, Thomas Raimann, Thomas Eichenberger | 2007-05-15 |
| 6600042 | Process for the preparation of pyrimido[5,4-g]pteridine derivatives | Thomas Eichenberger, Karl-Heinz Muller | 2003-07-29 |
| 6126735 | Process for coloring high molecular weight organic material and polycyclic pigments | Thomas Eichenberger | 2000-10-03 |
| 6120956 | Yellow pteridine having a hue-angle of at least 98 | Thomas Eichenberger, Mathias Düggeli | 2000-09-19 |