Patents by Inventor Angelo Mangini

Angelo Mangini has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Monoazoic hydrosoluble cationic dyes
    Patent number: 4263204
    Abstract: A new class of hydrosoluble monoazoic cationic dyes free of sulphonic or carboxylic groups and derived from 1-phenyl-3-aminopyrazoles is disclosed, as are, also, processes for preparing the new dyes and use thereof in the dyeing and printing of synthetic fibers.
    Type: Grant
    Filed: November 28, 1978
    Date of Patent: April 21, 1981
    Assignee: Montedison S.p.A.
    Inventors: Fabrizio Merlo, Ruggero Battisti, Giorgio Bornengo, Nicola Mazzaferro, Angelo Mangini, Antonio Tundo
  • Water-insoluble mono-azo yellow dyes derived from 1-phenyl-3-aminopyrazoles
    Patent number: 4216145
    Abstract: New yellow mono-azo dyes which are insoluble in water are disclosed. The dyes are derived from 1-phenyl-3-aminopyrazoles and are particularly effective in dyeing synthetic hydrophobic fibers to intense yellow shades.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: August 5, 1980
    Assignee: Montedison S.p.A.
    Inventors: Ruggero Battisti, Gioacchino Boffa, Nicola Mazzaferro, Angelo Mangini, Antonio Tundo