Patents by Inventor Frank J. Casullo

Frank J. Casullo 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).

  • Protection of copper from corrosion
    Patent number: 4731128
    Abstract: Copper is protected from corrosion by contacting the copper with a first azole and then contacting the copper with a second and different azole. The chemical reactivity of the first azole with copper must be greater than the reactivity of the second and different azole with copper. Also, the absorbency of the second azole on copper must be greater than the absorbency of the first azole on the copper.
    Type: Grant
    Filed: May 21, 1987
    Date of Patent: March 15, 1988
    Assignee: International Business Machines Corporation
    Inventor: Frank J. Casullo