Inventor · disambiguated record
Ernst Hoyer
Also filed as: HOYER ERNST · HOYER ERNST H J · NOLL WALTER · STEUERNAGEL HANS H
19 granted patents·245 citations·filing 1973–1988
95Inventor score
Top patents by PatentIndex Score
19 records- 0194US4485041AWater-soluble metal free or copper triazino-bis-[hydroxy-naphthylamino]-disazo dyestuffs containing fiber reactive groups, and a process for dyeing or printing cellulose fibersHOECHST AG·Filed 1981·Granted Nov 27, 1984·33 cites·13 claims
- 0291US4323497AWater-soluble disazo dyestuffsHOECHST AG·Filed 1978·Granted Apr 6, 1982·22 cites·16 claims
- 0389US4622390AWater-soluble disazo compounds containing an amino naphthol-disulfonic acid moiety as a coupling component and fibre-reactive groupsHOECHST AG·Filed 1985·Granted Nov 11, 1986·30 cites·13 claims
- 0486US4242258AWater-soluble dyestuffs, processes for their manufacture, their use as fiber-reactive dyestuffs for dyeing and printing fiber materials and the fiber materials dyed with these dyestuffsHOECHST AG·Filed 1979·Granted Dec 30, 1980·14 cites·2 claims
- 0585US4492654AWater-soluble azo compounds, a process for their preparation and their use as dyesHOECHST AG·Filed 1983·Granted Jan 8, 1985·18 cites·10 claims
- 0680US4378312AWater-soluble azo dyestuffsHOECHST AG·Filed 1980·Granted Mar 29, 1983·14 cites·16 claims
- 0779US4315865AProcess for the production of sulfuric acid semiester compounds by sulfation in a machine employing kneading actionHOECHST AG·Filed 1978·Granted Feb 16, 1982·10 cites·7 claims
- 0878US4730038AWater-soluble disazo compounds of 1-amino-8-naphthal-3,6- or 4,6-disulfonic acid as bivalent coupling component, containing fiber-reactive groups suitable as dyestuffsHOECHST AG·Filed 1985·Granted Mar 8, 1988·14 cites·9 claims
- 0975US4370145ACopper formazan compounds, processes for their preparation and their use as dyestuffsHOECHST AG·Filed 1981·Granted Jan 25, 1983·11 cites·4 claims
- 1071US4939243AWater-soluble copper complex disazo compounds containg a chloro triazinylamino group and a group of the vinylsulfone series as fiber-reactive groups and their dyestuffsHOECHST AG·Filed 1985·Granted Jul 3, 1990·10 cites·11 claims
- 1170US4035351AWater-soluble monoazo dyestuff containing a phenylene diazo componentHOECHST AG·Filed 1975·Granted Jul 12, 1977·7 cites·5 claims
- 1269US4334076AProcess for the preparation of sulfuric acid semiester ethylsulfonyl compounds of aminophenols, aminobenzanilides or phenylpyrazolones by esterification with sulfuric acid and/or sulfur trioxide in a kneaderHOECHST AG·Filed 1977·Granted Jun 8, 1982·7 cites·13 claims
- 1369US3957751AWater-soluble reactive dyestuffs of the monoazo series containing an active methylene coupling componentHOECHST AG·Filed 1973·Granted May 18, 1976·9 cites·9 claims
- 1464US4296913ABall valveHOYER ERNST H J·Filed 1979·Granted Oct 27, 1981·20 cites·11 claims
- 1559US4336190ACopper complex formazan compounds, process for their manufacture and their use as dyestuffsHOECHST AG·Filed 1980·Granted Jun 22, 1982·16 cites·5 claims
- 1651US4916215AWater-soluble disazo compounds containing substituted triazinyl radical, pyrazole-type groups, and a plurality of fiber-reactive sulfone-containing groups, suitable as dyestuffsHOECHST AG·Filed 1988·Granted Apr 10, 1990·4 cites·11 claims
- 1751US4002606AWater-soluble phenyl-azo-naphthyl compoundsHOECHST AG·Filed 1974·Granted Jan 11, 1977·3 cites·9 claims
- 1843US4191703AProcess for the manufacture of sulfuric acid semi-ester compoundsHOECHST AG·Filed 1978·Granted Mar 4, 1980·2 cites·5 claims
- 1933US4293306AProcess for the dyeing and printing of hydrophobic synthetic organic fiber materials with water-insoluble azo dyestuffsHOECHST AG·Filed 1980·Granted Oct 6, 1981·1 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →