Inventor · disambiguated record
Erich Schinzel
Also filed as: SCHINZEL ERICH
33 granted patents·274 citations·filing 1974–1987
97Inventor score
Files withHOECHST AG33
Top patents by PatentIndex Score
33 records- 0190US3951965ABis-triazinyl-amino)-stilbene-disulfonic acid derivativesHOECHST AG·Filed 1974·Granted Apr 20, 1976·23 cites·12 claims
- 0289US4122257ABenzofuran-oxadiazole compoundsHOECHST AG·Filed 1977·Granted Oct 24, 1978·30 cites·2 claims
- 0388US3974172ABenzofuran derivativesHOECHST AG·Filed 1974·Granted Aug 10, 1976·17 cites·2 claims
- 0484US4142044A4-Benzoxazolyl-4'-oxadiazolyl stilbene optical brightenersHOECHST AG·Filed 1977·Granted Feb 27, 1979·13 cites·4 claims
- 0584US4002423ABenzofuran derivatives process for their preparation and their use as optical brightenersHOECHST AG·Filed 1974·Granted Jan 11, 1977·23 cites·8 claims
- 0680US4309551AQuaternized, bridged benzimidazolylbenzimidazoles, processes for their preparation and their useHOECHST AG·Filed 1980·Granted Jan 5, 1982·13 cites·5 claims
- 0780US4246403A1,3,4-Oxadiazolone-(2) compounds and process for their manufactureHOECHST AG·Filed 1979·Granted Jan 20, 1981·12 cites·2 claims
- 0879US4048185ABenzoxazole derivatives, process for their preparation and their use as optical brightenersHOECHST AG·Filed 1976·Granted Sep 13, 1977·9 cites·2 claims
- 0978US3931215ABenzofuran derivativesHOECHST AG·Filed 1974·Granted Jan 6, 1976·11 cites·10 claims
- 1076US4508900ACationic compounds of the naphthalimide series, process for their preparation and their useHOECHST AG·Filed 1982·Granted Apr 2, 1985·9 cites·1 claims
- 1176US4039531A4-Stilbenyl-1,2,3-triazoles, process for preparing them and their use as optical brightenersHOECHST AG·Filed 1975·Granted Aug 2, 1977·8 cites·4 claims
- 1274US4473371APerfluoroalkyl esters, a process for their preparation and their use as a soil-repellant agentHOECHST AG·Filed 1982·Granted Sep 25, 1984·21 cites·8 claims
- 1374US4263441ANovel fluorine-containing benz-azole derivatives, process for their manufacture and their use as optical brightenersHOECHST AG·Filed 1978·Granted Apr 21, 1981·7 cites·2 claims
- 1470US4001221A4-stilbenyl-5-cyano-1,2,3-triazolesHOECHST AG·Filed 1975·Granted Jan 4, 1977·6 cites·9 claims
- 1569US4016195AMonostyryl-naphthalene derivativesHOECHST AG·Filed 1976·Granted Apr 5, 1977·11 cites·5 claims
- 1667US4791205ABisbenzoxazolylnaphthalenes containing sulfonate or sulfonamide groups, a process for their preparation and their useHOECHST AG·Filed 1987·Granted Dec 13, 1988·7 cites·3 claims
- 1767US4447350AMixtures of optical brighteners and their useHOECHST AG·Filed 1983·Granted May 8, 1984·12 cites·6 claims
- 1866US3996213A1,2,4-Triazolyl-(1) derivatives, a process for their preparation and their use as optical brightenersHOECHST AG·Filed 1975·Granted Dec 7, 1976·5 cites·6 claims
- 1961US4814453ANaphthalimides containing sulfuric acid ester groups, a process for their preparation and their useHOECHST AG·Filed 1987·Granted Mar 21, 1989·5 cites·2 claims
- 2057US4595756ACationic compounds of the naphthalimide series, process for their preparation and their useHOECHST AG·Filed 1984·Granted Jun 17, 1986·3 cites·4 claims
- 2157US3957846AMonostyryl-naphthalene derivativesHOECHST AG·Filed 1974·Granted May 18, 1976·3 cites·3 claims
- 2251US4039555ABenzofuran derivatives, process for preparing them and their use as optical brightenersHOECHST AG·Filed 1975·Granted Aug 2, 1977·2 cites·7 claims
- 2351US4001130AOptical brightenersHOECHST AG·Filed 1974·Granted Jan 4, 1977·3 cites·8 claims
- 2448US4416795AMixtures of optical brightenersHOECHST AG·Filed 1982·Granted Nov 22, 1983·6 cites·5 claims
- 2546US4133953AProcess for the preparation of sulfonated benzofuran derivativesHOECHST AG·Filed 1978·Granted Jan 9, 1979·2 cites·4 claims
- 2646US4129412ABrightener mixtures and their useHOECHST AG·Filed 1977·Granted Dec 12, 1978·9 cites·3 claims
- 2745US3998812AStyryl-pyrazoline compoundsHOECHST AG·Filed 1974·Granted Dec 21, 1976·2 cites·5 claims
- 2840US4675402AProcess for the preparation of dialkoxytriazinylpyrenesHOECHST AG·Filed 1985·Granted Jun 23, 1987·1 cites·4 claims
- 2939US4376214AProcess for the preparation of naphthalene-1,4-dicarboxylic acidHOECHST AG·Filed 1981·Granted Mar 8, 1983·1 cites·3 claims
- 3033US3972877AButadiene derivatives, process for their preparation and their use as optical brightenersHOECHST AG·Filed 1974·Granted Aug 3, 1976·0 cites·7 claims
- 3132US4375556AProcess for the preparation of naphthalene-1,4-dicarboxylic acidHOECHST AG·Filed 1981·Granted Mar 1, 1983·0 cites·3 claims
- 3231US4309536AProcess for the manufacture of bis-benzo-furanyl compoundsHOECHST AG·Filed 1980·Granted Jan 5, 1982·0 cites·7 claims
- 3327US4587338APerfluoroalkyl esters of anthranilic acidsHOECHST AG·Filed 1984·Granted May 6, 1986·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →