Patents by Inventor George W. Frost, Jr.

George W. Frost, 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).

  • Extended-life pavement-marking sheet material
    Patent number: 4248932
    Abstract: A new pavement-marking sheet material comprises a conformable base sheet, a flexible top layer adhered to the base sheet, and glass microspheres or other particulate material partially embedded and strongly supported and adhered in the top layer.
    Type: Grant
    Filed: June 14, 1979
    Date of Patent: February 3, 1981
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Chi F. Tung, George W. Frost, Jr.