Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863522 | Novel compositions based on C.I. Pigment Red 177 | Max Jost, Philippe Bugnon | 1989-09-05 |
| 4857646 | Modified beta-quinacridone pigment | — | 1989-08-15 |
| 4844742 | Surface modified pigment compositions | — | 1989-07-04 |
| 4810304 | Solid solutions of pyrrolo-(3,4-C)-pyrroles with quinacridones | Fridolin Babler | 1989-03-07 |
| 4782153 | Pyridoquinolone derivatives | Alain C. Rochat, Abul Iqbal | 1988-11-01 |
| 4760004 | Thioquinacridones and isothioquinacridones, preparation and use thereof | Alain C. Rochat, Jin Mizuguchi | 1988-07-26 |
| 4760144 | Process for preparation of yellow shade modification of gamma quinacridone | — | 1988-07-26 |
| 4730014 | Use of pyridoquinolone derivatives as pigments | Alain C. Rochat, Abul Iqbal | 1988-03-08 |
| 4692189 | Novel compositions based on indanthrone blue pigments | Fridolin Babler, Bernhard Medinger | 1987-09-08 |
| 4548968 | Manufacture of resin extended pigments | — | 1985-10-22 |
| 4541872 | Preparation of pigmentary grade pigment from crude pigment | — | 1985-09-17 |
| 4478968 | Manufacture of resin extended pigments | — | 1984-10-23 |
| 4455173 | Preparation of pigmentary form of quinacridone pigments | — | 1984-06-19 |
| 4371642 | Process for preparing polyolefin resin extended pigments | — | 1983-02-01 |
| 4369272 | Process for preparing polyolefin resin extended pigments comprising salt milling crude pigment with the resin | — | 1983-01-18 |