Patents by Inventor Harry Robert Frey

Harry Robert Frey 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 for inspecting cathode-ray-tube window for objectionable cord
    Patent number: 4076426
    Abstract: In inspecting a cathode-ray-tube window having a light-scattering inner surface, a pattern, which approximates the structure of the video images to be viewed through the window, is placed close to or against the inner surface. The pattern is observed through the window, and those local regions where the pattern appears to be distorted are identified.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: February 28, 1978
    Assignee: RCA Corporation
    Inventors: Harvey Andrew Gross, Harry Robert Frey, John David Messner, Raymond Frederick Walters