Patents by Inventor Lothar Gross

Lothar Gross 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).

  • Optical reading system for electronic pocket calculators
    Patent number: 4105287
    Abstract: The optical reading system is provided for displaying the luminous digits of the display of an electronic pocket calculator. The calculator is held within a housing which carries an optical reversing system above the digital display whereby a non-reversed image of the digits can be viewed in a substantially vertical plane. The reversing system is preferably formed by a cylindrical lens and a mirror.
    Type: Grant
    Filed: July 26, 1976
    Date of Patent: August 8, 1978
    Inventor: Lothar Gross