Patents by Inventor Rafael G. Filippini

Rafael G. Filippini 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: 6447412
    Abstract: A sports racquet comprises a handle and a frame coupled to the handle. The frame includes an inner portion and an outer portion located substantially opposite the inner portion. The inner portion of the frame include a plurality of undulations that extend towards and away from a ball-hitting surface, the undulations reducing the unintended bunching and wrinkling of material that intermittently forms in the frame during the manufacturing process. The undulations can be varied by location, undulation length, undulation height, and frequency and can be used in racquets made from a variety of materials and methods.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: September 10, 2002
    Assignee: EF Composite Technologies, L.P.
    Inventor: Rafael G. Filippini
  • Patent number: D476386
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: June 24, 2003
    Assignee: EF Composite Technologies, L.P.
    Inventor: Rafael G. Filippini