Patents by Inventor Helen Joyce Card

Helen Joyce Card 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: 6669270
    Abstract: An airfoil, triangular in cross-section, is mounted at or near the rear of the truck, perpendicular to the ground with the hypotenuses of the triangle being the leading edge of the airfoil. The airfoil stabilizes the truck from air blasts caused by passing vehicles.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: December 30, 2003
    Inventors: Loyd Ray Card, Helen Joyce Card