Inventor · disambiguated record
Fritz Erdmann
Also filed as: ERDMANN FRITZ
9 granted patents·148 citations·filing 1978–1993
88Inventor score
Top patents by PatentIndex Score
9 records- 0193US4555469AProcess of preparing light-sensitive naphthoquinonediazidesulfonic acid esterHOECHST AG·Filed 1983·Granted Nov 26, 1985·65 cites·20 claims
- 0288US4424270ALight-sensitive mixture comprising a naphthoquinonediazidesulfonic acid ester and process for preparing said esterHOECHST AG·Filed 1981·Granted Jan 3, 1984·42 cites·21 claims
- 0356US4266000APhotosensitive copying compositionHOECHST AG·Filed 1978·Granted May 5, 1981·11 cites·9 claims
- 0454US5064959AAromatic compounds substituted by 4,6-bis(trichloromethyl)-s-triazin-2-yl groupsHOECHST AG·Filed 1989·Granted Nov 12, 1991·11 cites·17 claims
- 0542US5563018A(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
- 0642US5216158AOxadiazole compounds containing 4,6-bis-trichloromethyl-S-triazin-2-yl groups, process for their preparationHOECHST AG·Filed 1991·Granted Jun 1, 1993·7 cites·10 claims
- 0738US4492748ALight-sensitive polycondensation product containing diazonium and dialdehyde groups, and light-sensitive recording material prepared therewithLUTZ WALTER·Filed 1982·Granted Jan 8, 1985·5 cites·10 claims
- 0835US4873169AProcess for the preparation of an o-naphthoquinonediazide sulfonic acid ester and photosensitive mixture containing sameHOECHST AG·Filed 1987·Granted Oct 10, 1989·4 cites·18 claims
- 0929US5358823ARadiation-sensitive composition containing esterification product of (1,2-naphthoquinone-2-diazide)-sulfonic acid with 2,3,4,4'-tetrahydroxybenzophenone and a di- or tri-hydroxybenzophenoneHOECHST AG·Filed 1992·Granted Oct 25, 1994·1 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →