Inventor · disambiguated record
Josef Frauenknecht
Also filed as: FRAUENKNECHT JOSEF
5 granted patents·35 citations·filing 1973–1988
78Inventor score
Files withSANDOZ LTD5
Top patents by PatentIndex Score
5 records- 0168US3953168ADyeing processSANDOZ LTD·Filed 1974·Granted Apr 27, 1976·14 cites·19 claims
- 0258US3980428ADyeing processSANDOZ LTD·Filed 1973·Granted Sep 14, 1976·9 cites·18 claims
- 0345US4622045AMethod of dyeing wool with acid dyestuffsSANDOZ LTD·Filed 1984·Granted Nov 11, 1986·6 cites·25 claims
- 0439US4894065AMethod for producing wool dyeings of improved levelness and dye mixtures useful therefor: parameters for combination capacity and compensation of variable affinity for wool from root to tip of fiberSANDOZ LTD·Filed 1988·Granted Jan 16, 1990·2 cites·21 claims
- 0531US4852991ADyeing of polyamide fibers with anionic dyes using a cationic assistant followed by an anionic assistantSANDOZ LTD·Filed 1988·Granted Aug 1, 1989·4 cites·40 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →