Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6913642 | Pigments having improved coloristic properties and process for their preparation | Albert Riegler, Klaus Ruf, Urs Schlatter | 2005-07-05 |
| 6911074 | Pigments having improved coloristic properties and process for their preparation | Albert Riegler, Klaus Ruf, Urs Schlatter | 2005-06-28 |
| 6911075 | Pigments having improved coloristic properties and process for their preparation | Albert Riegler, Klaus Ruf, Urs Schlatter, Takashi Deno | 2005-06-28 |
| 6544325 | Pigmentary copper phthalocyanine solid solution and transparent dispersion comprising it | Veronique Hall-Goulle, Gerardus De Keyzer | 2003-04-08 |
| 6517630 | Pigments having improved colouristic properties and process for their preparation | Urs Schlatter | 2003-02-11 |
| 6506244 | Stable polymorphic copper-free phthalocyanine pigment | Hitoshi Nagasue, Keisuke Hirano | 2003-01-14 |
| 6494947 | Crimson-colored pigment composition and the utilization thereof | Hanspeter Hauser, Klaus Ruf | 2002-12-17 |
| 6001168 | Pigment dispersions comprising C.I. Pigment Red 222 | Veronique Hall-Goulle, Hanspeter Hauser | 1999-12-14 |