Patents by Inventor Leonardo Falletti

Leonardo Falletti 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).

  • Activating composition for plating of electrically insulative substrates and method for plating of such substrates using said composition
    Patent number: 5165971
    Abstract: The invention relates to an activating composition for the electroless plating of non-conductive surfaces, in particular electronic printed circuit boards.The composition contains a metal complex in which the ligand consists of a quaternary nitrogen compound, especially a compound in which nitrogen forms part of a heterocyclic system and is quaternarized with a radical comprising an acid residue carrying a negative charge, for example a sulphonated group.The invention also concerns a method for the electroless plating involving the use of such composition, preceded by a preliminary treatment of the substrate and followed by the reduction of activating metal.The activating composition according to the invention allows to fix firmly the activator metal to the substrate.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: November 24, 1992
    Assignee: Kemifar S.p.A.
    Inventor: Leonardo Falletti