Patents by Inventor Costante Fontana

Costante Fontana 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).

  • Stabilizing composition for inorganic peroxide solutions
    Patent number: 5538152
    Abstract: Stabilizing composition for inorganic peroxides and hydrogen peroxide intended for baths for the surface treatment of metal components comprising at least one activating agent selected from derivatives of benzotriazoles of imidazole and of carboxyimidazoles. Process for the treatment of metal surfaces using the composition at acid pH in the presence of inorganic peroxide. Use of the composition for producing a bath for pickling, polishing or burnishing metals.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: July 23, 1996
    Assignee: Solvay Interox S.p.A.
    Inventor: Costante Fontana