Patents by Inventor Gregory Keith Qualizza

Gregory Keith Qualizza 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).

  • ADJUSTABLE STIFFNESS SHAFT STRUCTURE
    Publication number: 20090163288
    Abstract: A shaft structure with an adjustable stiffness is provided for golf clubs, fishing rods and like apparatuses. The shaft structure employs an inner and outer shaft structure. The golfer, in practice, configures the stiffness of a golf shaft, by adjusting the pressure of an inner shaft structure. The combination of outer and inner shaft structure stiffness results in an advantageous stiffness profile. The golfer can, at any time and very easily, change the stiffness profile of the golf shaft.
    Type: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Inventor: Gregory Keith Qualizza