Patents by Inventor Pietro Pizzio

Pietro Pizzio 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).

  • Silver base activating solutions for electroless copper deposition
    Patent number: 4082557
    Abstract: A silver base activating solution, for use prior to electroless copper deposition, contains a salt of a weak oxyacid of an element of group III, IV, V or VI of the periodic system, e.g. sodium tetraborate. A relatively low silver concentration, within the range of 0.01 g/l to 1 g/l can accordingly be used; and the resulting copper coating forms quickly and is compact, smooth and adherent. The silver solution is stable.
    Type: Grant
    Filed: July 19, 1976
    Date of Patent: April 4, 1978
    Assignee: Alfachimici S.p.A.
    Inventor: Pietro Pizzio