Patents by Inventor Frederick F. Valego, Jr.

Frederick F. Valego, Jr. 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).

  • Extruding colored thermoplastic resin sheets
    Patent number: 4316868
    Abstract: The invention relates to a process and apparatus for producing a colored band in an extruded thermoplastic sheet. In the process, a probe is inserted in a sheet extrusion die manifold and a colored melt is injected into the polymer melt such that a sheet with an encapsulated colored band is obtained.
    Type: Grant
    Filed: November 17, 1980
    Date of Patent: February 23, 1982
    Assignee: Monsanto Company
    Inventors: Robert A. Esposito, Frederick F. Valego, Jr., John C. Hoagland