Otmar Hafner
4Patents
3h-index
7Co-inventors
39Inventor score
Filing activity: Dec 16, 1985 → May 2, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4732618A | Powdered pigments with improved rheological properties, processes for their preparation and their use with a content of at least 5% of unsubstituted quinacridone | Chemistry; Metallurgy | 6 | Expired |
| US4631330A | Addition compounds and process for their preparation | Chemistry; Metallurgy | 5 | Expired |
| US5070159A | Addition compounds, a process for the preparation, and their use, based on epoxy novolac-fatty amine adducts | Chemistry; Metallurgy | 4 | Expired |
| US5066687A | Powdered azo pigments with improved rheological properties, process for their preparation and their use | Emerging Cross-Sectional Technologies | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.