Manfred Groll
16Patents
6h-index
14Co-inventors
59Inventor score
Filing activity: May 25, 1973 → May 16, 1991
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US3989692A | Reactive dyestuffs | Chemistry; Metallurgy | 10 | Expired |
| US5163971A | Dyestuff mixtures of metal phthalocyanine and pyridone azo reactive dyes | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4246174A | Process for the preparation of phthalocyanine reactive dyestuffs | Chemistry; Metallurgy | 7 | Expired |
| US4198203A | Dyestuff solutions of copper phthalocyanine derivatives for paper dyeing | Textiles; Paper | 7 | Expired |
| US4282000A | Dyestuff solutions, their preparation and their use for dyeing paper | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5070193A | Reactive phthalocyanine dyestuffs | Chemistry; Metallurgy | 6 | Expired |
| US4024144A | Polycyclic dyestuffs | Chemistry; Metallurgy | 5 | Expired |
| US5051501A | Reactive phthalocyanine dyestuffs containing a fluorochloropyrimidinyl group | Chemistry; Metallurgy | 4 | Expired |
| US4268267A | Phthalocyanine reactive dyestuffs | Chemistry; Metallurgy | 4 | Expired |
| US4537721A | Cu-Pc dyestuffs | Chemistry; Metallurgy | 3 | Expired |
| US4101551A | Quinophthalone dyestuffs | Chemistry; Metallurgy | 2 | Expired |
| US4647409A | Copper-phthalocyanine dyestuffs | Textiles; Paper | 2 | Expired |
| US4267107A | Reactive dyestuffs | Chemistry; Metallurgy | 2 | Expired |
| US4286962A | Phthalocyanine reactive dyestuffs, their preparation and their use for dyeing materials containing hydroxyl groups or amide groups | Chemistry; Metallurgy | 1 | Expired |
| US3932419A | Quinophthalone dyestuffs | Chemistry; Metallurgy | 1 | Expired |
| US4277245A | Process for dyeing and printing cellulose fibres | Textiles; Paper | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.