Fabio Beffa
38Patents
7h-index
15Co-inventors
62Inventor score
Filing activity: Jul 30, 1973 → Jun 29, 1987
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4033942A | Chromium complex dye, including azo and azo methine dye compounds | Textiles; Paper | 10 | Expired |
| US4008211A | Betainic azo dyestuffs containing cobalt in complex union with a colorless, tridentate ligand | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4085097A | Process for the manufacture of chromium complexes from metallizable azo or azo methine dyes | Chemistry; Metallurgy | 9 | Expired |
| US4116952A | Unsymmetrical azo - azo methine 1:2 chromium complex dyes | Textiles; Paper | 8 | Expired |
| US4314937A | 1:2 Chromium unsymmetrical complexes of azo and disazo dyes | Textiles; Paper | 8 | Expired |
| US4452602A | Process for dyeing leather with mixtures of dyes | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4710198A | 1:2 chromium or cobalt metal complex dyes and use thereof for dyeing leather | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4053462A | Unsymmetrical phenyl azo naphthyl chromium complex dyes | Textiles; Paper | 6 | Expired |
| US4256633A | Chromium complex compounds, process for their manufacture and use thereof | Textiles; Paper | 5 | Expired |
| US4312808A | Red monoazo dyestuffs | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4086223A | Asymmetrical 1:2-chromium complex azo dyestuffs | Chemistry; Metallurgy | 4 | Expired |
| US4331596A | Arylazoarylazo-substituted azo, azomethine 1:2 chromium complex dyes | Chemistry; Metallurgy | 4 | Expired |
| US4311641A | Chromium complexes of mixed azo compounds | Chemistry; Metallurgy | 3 | Expired |
| US4083839A | Unsymmetrical mono sulfo containing 1:2 azo, azo chromium complex dyes | Chemistry; Metallurgy | 3 | Expired |
| US4315854A | Chromium and cobalt complex amino hydroxy azomethine dyes | Chemistry; Metallurgy | 3 | Expired |
| US4563193A | Asymmetric 1:2 chrome complex dyes containing an azo and an azomethine compound | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4432898A | Sulfo-substituted fibre-reactive 1:2-chromium complex azo dyes | Textiles; Paper | 2 | Expired |
| US3970615A | Unsymmetrical mono-sulfo containing chromium complexes of azo dyes | Chemistry; Metallurgy | 2 | Expired |
| US4652631A | Bis 1:2 chromium complexes of disazo and azo or azomethine dyes | Chemistry; Metallurgy | 2 | Expired |
| US4005065A | Unsymmetrical phenyl azo naphthyl chromium complex dyes | Chemistry; Metallurgy | 2 | Expired |
| US4013630A | Chromium complex disazo dyes | Textiles; Paper | 2 | Expired |
| US4427585A | 1:2 Chromium and cobalt complex dyes | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4340536A | Chrome-complex dyes and the production and use thereof | Chemistry; Metallurgy | 2 | Expired |
| US4378970A | Red monoazo sulphonic acid dyestuffs for polyamide | Emerging Cross-Sectional Technologies | 2 | Expired |
| US3978037A | Azo, azo methine 1:2 chromium complex dyes | Chemistry; Metallurgy | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.