Patents by Inventor Robert A. Kohn

Robert A. Kohn 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).

  • Armor window
    Patent number: 4005662
    Abstract: An armor window through which air, sound and sight without inversion will pass freely yet sight can be selectively obstructed and at all times the flight of a propelled element at any angle will be obstructed by at least two spaced angle iron members with the further high probability of propelled elements, including harmful liquids, being substantially and safely deflected.
    Type: Grant
    Filed: March 21, 1975
    Date of Patent: February 1, 1977
    Inventors: Robert A. Kohn, Karen Kohn