Inventor · disambiguated record
Helmut Hoch
Also filed as: HILLER HEINRICH · HOCH HELMUT
26 granted patents·128 citations·filing 1974–1994
95Inventor score
Top patents by PatentIndex Score
26 records- 0183US4113498ACorrosion inhibitor for metal surfacesOXY METAL INDUSTRIES CORP·Filed 1977·Granted Sep 12, 1978·30 cites·8 claims
- 0281US4189582AProcess for upgrading the color value of 3,4,9,10-tetracarboxylic acid N,N'-bis-methylimideBASF AG·Filed 1978·Granted Feb 19, 1980·11 cites·9 claims
- 0376US4286094APreparation of a pigmentary form of perylene-3,4,9,10-tetracarboxylic acid diimideBASF AG·Filed 1979·Granted Aug 25, 1981·9 cites·11 claims
- 0476US4067903AManufacture of arylaminesBASF AG·Filed 1976·Granted Jan 10, 1978·11 cites·12 claims
- 0572US5342950APreparation of quinophthalone derivativesBASF AG·Filed 1990·Granted Aug 30, 1994·12 cites·4 claims
- 0661US4217455APreparation of transparent and easily dispersible perylene-3,4,9,10-tetracarboxylic acid diimide pigments of high tinctorial strengthBASF AG·Filed 1979·Granted Aug 12, 1980·5 cites·11 claims
- 0761US4167634AManufacture of a pigmentary form of α-indanthroneBASF AG·Filed 1978·Granted Sep 11, 1979·6 cites·12 claims
- 0858US4020102AProduction of 2-hydroxynaphthalene-3-carboxylic acidBASF AG·Filed 1975·Granted Apr 26, 1977·5 cites·22 claims
- 0956US4979684ADispersion, comminution or deagglomeration and classification of solidsBASF AG·Filed 1989·Granted Dec 25, 1990·12 cites·1 claims
- 1054US4032568AProduction of 2-hydroxynaphthalene-3-carboxylic acidBASF AG·Filed 1975·Granted Jun 28, 1977·4 cites·4 claims
- 1150US5210190APreparation of triazinyl-bis-anthraquinone dyes by reacting aryldihalotriazine with amino anthraquinoneBASF AG·Filed 1990·Granted May 11, 1993·4 cites·4 claims
- 1247US4332955APreparation of transparent pigmentary forms of 4,4',7,7'-tetrachlorothioindigoBASF AG·Filed 1980·Granted Jun 1, 1982·3 cites·16 claims
- 1343US4904796APreparation of a blue anthraquinonoid disperse dye of 1,4-naphthoquinone-[2,]-phthalimidesBASF AG·Filed 1988·Granted Feb 27, 1990·3 cites·20 claims
- 1443US4038309AProduction of 2-hydroxynaphthalene-3-carboxylic acidBASF AG·Filed 1975·Granted Jul 26, 1977·2 cites·18 claims
- 1542US4298534APreparation of brilliant, transparent pigmentary bromo-isoviolanthrone of high tinctorial strengthBASF AG·Filed 1980·Granted Nov 3, 1981·2 cites·11 claims
- 1642US4002675AManufacture of 2-hydroxy-naphthalene-3-carboxylic acidBASF AG·Filed 1975·Granted Jan 11, 1977·2 cites·7 claims
- 1738US4950756APreparation of 1-nitroanthraquinone-2-carboxylic acidBASF AG·Filed 1989·Granted Aug 21, 1990·1 cites·3 claims
- 1836US4824608APreparation of C.I. Vat Blue 16BASF AG·Filed 1987·Granted Apr 25, 1989·1 cites·11 claims
- 1935US5066820AProcess for the preparation of 1-amino-2-carboxyanthraquinonesBASF AG·Filed 1990·Granted Nov 19, 1991·1 cites·6 claims
- 2034US4002664AManufacture of dimethylaminobenzenecarboxylic acid estersBASF AG·Filed 1974·Granted Jan 11, 1977·4 cites·14 claims
- 2131US5525743APreparation of anthraquinone imide compoundsBASF AG·Filed 1994·Granted Jun 11, 1996·0 cites·4 claims
- 2230US4916244APreparation of 1-amino-4-hydroxy-2-(6'-hydroxyhexoxy)-anthraquinoneBASF AG·Filed 1988·Granted Apr 10, 1990·0 cites·7 claims
- 2330US4882095APreparation of alkoxy(iso)violanthrenedionesBASF AG·Filed 1988·Granted Nov 21, 1989·0 cites·16 claims
- 2430US4133828AManufacture of dimethylaminobenzenesulfonatesBASF AG·Filed 1976·Granted Jan 9, 1979·0 cites·14 claims
- 2529US4323510ABrown vat dye and its preparationBASF AG·Filed 1980·Granted Apr 6, 1982·0 cites·10 claims
- 2628US4431824APreparation of 4,4',7,7'-tetrachlorothioindigo pigments of high color strengthBASF AG·Filed 1982·Granted Feb 14, 1984·0 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →