Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7544217 | Dye mixtures | Alfons Arquint, Urs Lauk | 2009-06-09 |
| 7169909 | Phthalimidylazo dyes, processess for the preparation thereof and the use thereof | Alfons Arquint, Urs Lauk | 2007-01-30 |
| 7087731 | Phthalimidyl azo dyes, process for the preparation thereof and the use thereof | Jean-Claud Wilhelm, Alfons Arquint, Urs Lauk | 2006-08-08 |
| 7030229 | Anthraquinone-azo dyes | Athanassios Tzikas, Urs Lauk | 2006-04-18 |
| 7029502 | Azo dyes, a process for their preparation and their use in the production of colored plastics or polymeric color particles, and in the dyeing or printing of hydrophobic fiber materials | Anton Andreoli, Urs Lauk, Athanassios Tzikas | 2006-04-18 |
| 7012137 | Phthalimidyl azo dyes, process for the preparation thereof and the use thereof | Jean-Claude Wilhelm, Alfons Arquint, Urs Lauk | 2006-03-14 |
| 6953846 | Pyridone dyes, a process for their preparation and their use in the production of colored plastics or polymeric color particles | Athanassios Tzikas, Urs Lauk, Romeo Dreier | 2005-10-11 |
| 6906195 | Pyridone dyes, a process for the preparation and their use in the production of colored plastics or polymeric color particles | Athanassios Tzikas, Urs Lauk, Romeo Dreier | 2005-06-14 |
| 6555664 | Phthalimidyl azo pigments, method for producing same and utilisation thereof | Urs Lauk, Romeo Dreier, Alfons Arquint | 2003-04-29 |
| 6551363 | Azo dye mixtures | Alfons Arquint, Urs Lauk | 2003-04-22 |
| 6111083 | Disperse dyes | Alfons Arquint, Urs Lauk | 2000-08-29 |
| 6034226 | Disperse dyes | Paul Herzig, Alfons Arquint | 2000-03-07 |
| 5942604 | Azo dye mixtures | Paul Herzig, Romeo Dreier, Alfons Arquint | 1999-08-24 |
| 5939579 | Disperse dyes | Paul Herzig, Alfons Arquint | 1999-08-17 |
| 5869628 | Disperse dyes | Paul Herzig | 1999-02-09 |
| 5723587 | Azo dyes | Athanassios Tzikas | 1998-03-03 |
| 4992558 | Disperse dyes containing a tricyanovinyl grouping bonded to a N,N-disubstituted aniline | Peter Liechti | 1991-02-12 |
| 4453944 | Dye stable to dyeing, processes for producing it, and its use for dyeing and printing synthetic and semi-synthetic fibre materials | Peter Liechti, Peter Eugster, Kurt Meyer | 1984-06-12 |