Patents by Inventor Vincent Lupoi

Vincent Lupoi 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).

  • Method of stain-decorating glass-ceramics
    Patent number: 4197105
    Abstract: Glass-ceramic articles having compositional inhomogeneities are provided with uniformly colored gray stain decorations by heat treating a palladium-containing staining material prior to application onto glass-ceramic articles which have been crystallized by a separate heat treatment, and then subjecting the glass-ceramic articles in contact with the staining material to another heat treatment to produce the stain decorations.
    Type: Grant
    Filed: September 14, 1978
    Date of Patent: April 8, 1980
    Assignee: PPG Industries, Inc.
    Inventors: Merritt J. Hummel, Vincent Lupoi, Richard L. Cerutti
  • Method of producing glass-ceramics with uniform brown stain decoration
    Patent number: 4192666
    Abstract: Glass-ceramic articles having compositional inhomogeneities are provided with uniformly colored brown stain decorations by applying a palladium-containing staining composition onto the articles after they have been subjected to a crystallizing heat treatment, and then subjecting the articles to a second heat treatment to produce the stain decorations.
    Type: Grant
    Filed: September 14, 1978
    Date of Patent: March 11, 1980
    Assignee: PPG Industries, Inc.
    Inventor: Vincent Lupoi