Patents by Inventor Joseph R. Grillo

Joseph R. Grillo 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).

  • Prefabricated panel structure
    Patent number: 4045933
    Abstract: A prefabricated panel utilizing a lightweight metal frame fabricated from metal members having a web and two substantially parallel flanges which extend in opposite directions from the edges of the web. The facing is joined to said frame by means of joining means which extend from the back of said facing through holes in the flanges of the members of the frame.
    Type: Grant
    Filed: June 28, 1976
    Date of Patent: September 6, 1977
    Inventor: Joseph R. Grillo