IP Library › Granted Patent US 4,895,949
Granted Patent Utility
US 4,895,949 · App. 07/209,260

Process for preparation of quinacridone solid solutions

Inventors: Edward E. Jaffe, Johannes Pfenninger
Patented Case View Patent ↗
Granted: Jan 23, 1990 Filed: Jun 20, 1988
Inventors
Edward E. Jaffe
Johannes Pfenninger
Assignee (at issue)
Ciba-Geigy

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Quick Facts
Patent No.
US 4,895,949
App. No.
07/209,260
Filed
1988-06-20
Granted
1990-01-23
Kind
A