Patents by Inventor Burton W. Marks

Burton W. Marks 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).

  • Electronic timepiece
    Patent number: 4212159
    Abstract: Improved timekeeping apparatus, such as a watch or clock with an electro-optic display simulating a conventional mechanical analog timepiece. Electro-optical material, e.g., liquid crystal material, is activated in selected areas to change its appearance to simulate movement of the hands.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: July 15, 1980
    Assignee: Texas Instruments Incorporated
    Inventors: Robert T. Noble, Perry A. Penz, Burton W. Marks