Patents by Inventor John Charles Brentzel

John Charles Brentzel 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).

  • Patent number: 5915936
    Abstract: A firearm with an identification safety system for preventing use by an unauthorized user. The firearm includes a barrel for discharging the firearm therethrough, a butt section connected to the barrel, a trigger connected between the barrel and butt section for initiating discharge of the firearm and a safety switch operable between a first position preventing discharge of the firearm and a second position allowing discharge of the firearm. A pressure sensor is positioned in the butt section for sensing grasping of the butt section by a palm of a user and a scanning sensor is connected for scanning a palm print of the palm of the user and generating a data signal representative of the scanned palm print upon sensing grasping of the butt section by the pressure sensor.
    Type: Grant
    Filed: December 1, 1997
    Date of Patent: June 29, 1999
    Inventor: John Charles Brentzel