Patents by Inventor Gregory John Charczuk

Gregory John Charczuk 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).

  • Propulsion devices
    Patent number: 8512086
    Abstract: A propulsion device includes a shaft and a paddle-like blade connected to a first end of the shaft. An electric motor is mounted on the paddle-like blade, and a propeller is attached to the electric motor. A power source electrically connected to the motor is also provided.
    Type: Grant
    Filed: April 9, 2010
    Date of Patent: August 20, 2013
    Inventor: Gregory John Charczuk