Inventor · disambiguated record
Siegfried Scheler
Also filed as: SCHAFER HEINZ · SCHELER SIEGFRIED
17 granted patents·109 citations·filing 1978–1996
92Inventor score
Top patents by PatentIndex Score
17 records- 0194US4540648ATwo-component diazotype material with ultraviolet light-absorbing dye salt of a benzothiazoleHOECHST AG·Filed 1984·Granted Sep 10, 1985·43 cites·19 claims
- 0288US4492749ADiazotype materials with 2-hydroxy-naphthalene having sulfonamide substituent as couplerHOECHST AG·Filed 1983·Granted Jan 8, 1985·20 cites·3 claims
- 0375US4334004ALight-sensitive diazotype material with 2-hydroxy-3-naphthoic acid amides having 6-sulfonic acid amide substitutionHOECHST AG·Filed 1979·Granted Jun 8, 1982·8 cites·10 claims
- 0470US5114816ARadiation-sensitive compounds, radiation-sensitive mixture prepared therewith and copying materialHOECHST AG·Filed 1989·Granted May 19, 1992·9 cites·25 claims
- 0560US5082932AProcess for preparing substituted 1,2-naphthoquinone-(2)-diazide-4-sulfonic acid esters and their use in a radiation-sensitive mixtureHOECHST AG·Filed 1989·Granted Jan 21, 1992·6 cites·18 claims
- 0646US4321373A2-Hydroxy-3-naphthoic acid amidesHOECHST AG·Filed 1980·Granted Mar 23, 1982·2 cites·9 claims
- 0742US5563018A(1,2-naphthoquinone 2-diazide) sulfonic acid esters, radiation-sensitive mixture prepared therewith and radiation-sensitive recording materialHOECHST AG·Filed 1993·Granted Oct 8, 1996·2 cites·15 claims
- 0842US4457997ATwo-component diazotype materialHOECHST AG·Filed 1982·Granted Jul 3, 1984·3 cites·7 claims
- 0941US4317875ARecording material containing diazo compounds and process for the manufacture thereofHOECHST AG·Filed 1980·Granted Mar 2, 1982·3 cites·6 claims
- 1038US4590143ATwo-component diazotype material with diazonium salt with anion of benzene or toluene sulfonateHOECHST AG·Filed 1984·Granted May 20, 1986·2 cites·10 claims
- 1136US5077395ASubstituted 1,2-naphthoquinone-2-diazide-4-sulfonic acids and processes for their preparation and useHOECHST AG·Filed 1990·Granted Dec 31, 1991·1 cites·15 claims
- 1235US5192640AProcess for preparing 7-hydroxy-1,2-naphthoquinone-2-diazide-4-sulfonic acid or salts thereofHOECHST AG·Filed 1990·Granted Mar 9, 1993·1 cites·16 claims
- 1334US5306595AComposition containing naphthoquinone diazide sulfonic acid mixed esters and radiation-sensitive recording material prepared therewithHOECHST AG·Filed 1992·Granted Apr 26, 1994·3 cites·20 claims
- 1433US5834157A2-acylamino-9-arylacridines, process for their preparation and photosensitive mixtures containing themAGFA GEVAERT AG·Filed 1996·Granted Nov 10, 1998·3 cites·18 claims
- 1533US5413899ALight-sensitive mixture containing an 0-naphthoquinonediazide-sulfonic acid ester and recording material produced therewith wherein the 0-naphthoquinone diazides are partial estersHOECHST AG·Filed 1994·Granted May 9, 1995·2 cites·23 claims
- 1633US4207110ADiazotype materialHOECHST AG·Filed 1978·Granted Jun 10, 1980·1 cites·4 claims
- 1729US5268252ARadiation-sensitive ester and process for its preparationHOECHST AG·Filed 1992·Granted Dec 7, 1993·0 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →