Inventor

BEFFA FABIO

CH38 patents

⚠️ This page may combine multiple inventors who share the name “BEFFA FABIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BEFFA FABIO

CIBA GEIGY CORP

1:2 Chromium and cobalt complex dyes

1:2 Chromium unsymmetrical complexes of azo and disazo dyes

Unsymmetrical azo - azo methine 1:2 chromium complex dyes

Unsymmetrical phenyl azo naphthyl chromium complex dyes

1:2 chromium or cobalt metal complex dyes and use thereof for dyeing leather

Asymmetric 1:2-chrome complexes of benzene-azo-naphthalene/naphthalene-azo-naphthalene acid dyes for leather

Asymmetrical polyazo chromium complex dyes comprising resorcinol as a coupling component

Asymmetric 1:2 chrome complex dyes containing an azo and an azomethine compound

1:2 Metal complexes of azomethine dyes having arylazo groups

Chrome-complex dyes and the production and use thereof

Arylazoarylazo-substituted azo, azomethine 1:2 chromium complex dyes

Chromium and cobalt complex amino hydroxy azomethine dyes

Chromium complexes of mixed azo compounds

Chromium complex compounds, process for their manufacture and use thereof

Unsymmetrical mono sulfo containing 1:2 azo, azo chromium complex dyes

Chromium complex disazo dyes

Unsymmetrical phenyl azo naphthyl chromium complex dyes

Bis 1:2 chromium complexes of disazo and azo or azomethine dyes

Bis 1:2 chromium complexes of disazo and azo or azomethine dyes

8-hydroxyquinoline sulfonic acid-azo chromium complexes

Azo, azo methine 1:2 chromium complex dyes

Unsymmetrical mono-sulfo containing chromium complexes of azo dyes

Sulfo-substituted fibre-reactive 1:2-chromium complex azo dyes

Process for the trichromatic dyeing of leather

Metal complexes of disazo dyes

Substituted unsymmetrical azo, azomethine 1:2 chromium complexes

1:2 Cobalt and chromium complex unsymmetrical azo dyes

Fibre-reactive chromium complex dyes, process for their manufacture and use thereof to dye cellulose or wool

New heavy metal complex dyes, process for their manufacture and use thereof

Chrome azo and/or azomethine dyes containing a benzthiazolylphenyl or stilbenyl radical

CIBA GEIGY AG

Chromium complex dye, including azo and azo methine dye compounds

Red monoazo dyestuffs

Betainic azo dyestuffs containing cobalt in complex union with a colorless, tridentate ligand

Process for the manufacture of chromium complexes from metallizable azo or azo methine dyes

Asymmetrical 1:2-chromium complex azo dyestuffs

Red monoazo sulphonic acid dyestuffs for polyamide

Water-soluble disazo dyestuffs containing a 3- or 4-[pyrazolylene-(1)-benzoylamino]-6-sulphophenyl moiety

PUENTENER ALOIS

Process for dyeing leather with mixtures of dyes