Patents by Inventor Marcel Chabonat

Marcel Chabonat 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).

  • Propulsive lifting rotors
    Patent number: 4210299
    Abstract: A propulsive lifting rotor for an aircraft comprises two wings pivotally mounted about axes parallel to their leading edges. The wings (rotary airfoils) are located at respective sides of a plane at right angles to the rotor axis.
    Type: Grant
    Filed: December 23, 1977
    Date of Patent: July 1, 1980
    Inventor: Marcel Chabonat