Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866112 | Thermoplastics containing a nickel complex pigment | Paul Lienhard | 1989-09-12 |
| 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 |