Inventor · disambiguated record
Ernst Heinrich
Also filed as: HEINRICH ERNST
22 granted patents·294 citations·filing 1972–1980
96Inventor score
Files withCASSELLA FARBWERKE MAINKUR AG22
Top patents by PatentIndex Score
22 records- 0195US4313872AAzo coupling in two-phase water-alcohol mixturesCASSELLA FARBWERKE MAINKUR AG·Filed 1978·Granted Feb 2, 1982·26 cites·12 claims
- 0294US4247456AWater-insoluble monoazo pyridone dyeCASSELLA FARBWERKE MAINKUR AG·Filed 1976·Granted Jan 27, 1981·29 cites·1 claims
- 0394US4061642A2,4,6-Trisubstituted-3-pyridine carboxamidesCASSELLA FARBWERKE MAINKUR AG·Filed 1976·Granted Dec 6, 1977·38 cites·3 claims
- 0494US3959250ABisazo dyestuffs of the 2,6-diaminopyridineCASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted May 25, 1976·33 cites·13 claims
- 0591US4325870AProcess for the preparation of 2,6-diaminopyridine-azo dyestuffs and of their precursorsCASSELLA FARBWERKE MAINKUR AG·Filed 1980·Granted Apr 20, 1982·25 cites·7 claims
- 0690US3957749AWater-insoluble monoazo pyridine dyesCASSELLA FARBWERKE MAINKUR AG·Filed 1972·Granted May 18, 1976·21 cites·4 claims
- 0789US4069012ADyeing of polyester fabric with disazo dyeCASSELLA FARBWERKE MAINKUR AG·Filed 1977·Granted Jan 17, 1978·18 cites·13 claims
- 0886US3980659ACertain 6-amino-4-hydrocarbyl-nicotinamidesCASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted Sep 14, 1976·16 cites·7 claims
- 0981US3960480ABisazo dyestuffs of the 2,6-diaminopyridine seriesCASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted Jun 1, 1976·11 cites·3 claims
- 1077US3956294ASubstituted pyridine compoundsCASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted May 11, 1976·12 cites·10 claims
- 1177US3946024A2-Hydrocarbyloxy-pyridine compoundsCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Mar 23, 1976·9 cites·2 claims
- 1276US3954782A2,6-Hydrazino-3-pyridine carboxyamidesCASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted May 4, 1976·9 cites·3 claims
- 1372US3947463ACertain 2-amino-nicotinonitrile derivativesCASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted Mar 30, 1976·8 cites·14 claims
- 1465US4087420AAzo dyestuffs containing an α-phenylamino isobutyric acid alkyl ester coupling componentCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted May 2, 1978·7 cites·2 claims
- 1564US3984199AWater-insoluble monoazo dyestuffsCASSELLA FARBWERKE MAINKUR AG·Filed 1973·Granted Oct 5, 1976·9 cites·1 claims
- 1663US4225716AProcess for the manufacture of 2,6-dichloropyridine derivativesCASSELLA FARBWERKE MAINKUR AG·Filed 1979·Granted Sep 30, 1980·4 cites·5 claims
- 1756US4035143AWater-insoluble azo dyestuffsCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Jul 12, 1977·5 cites·7 claims
- 1852US3993441A4-Nitro,2-alkylbenzene azo-3-cyano-4-methyl-6-hydroxy-2-pyridone dyeing of synthetic hydrophobic fibersCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Nov 23, 1976·3 cites·3 claims
- 1946US4002425AWater-insoluble monoazo dyestuffsCASSELLA FARBWERKE MAINKUR AG·Filed 1975·Granted Jan 11, 1977·2 cites·3 claims
- 2045US3954396ADyeing synthetic materials with a dodecyl benzoicacid ester-azo-(3-cyano-4-methyl-6-hydroxy-2-pyridone)CASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted May 4, 1976·7 cites·2 claims
- 2141US4058518AWater-insoluble monoazo 3-cyano-4-methyl-6-hydroxy-2-pyridine dyestuffsCASSELLA FARBWERKE MAINKUR AG·Filed 1976·Granted Nov 15, 1977·1 cites·3 claims
- 2241US4006129A2-Nitro-4-aliphaticoxy-phenyl-azo-2,6-dihydroxy-3-cyano-4-methylpyridine compoundsCASSELLA FARBWERKE MAINKUR AG·Filed 1974·Granted Feb 1, 1977·1 cites·1 claims
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