Patents by Inventor Gregory Roger Grenzke

Gregory Roger Grenzke 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).

  • Publication number: 20100319216
    Abstract: A shoe comprising a sole and an upper secured to the sole. The upper includes a heel portion movable relative to a mid portion from an open position to a closed position. A securing mechanism (e.g., a lace and a dial for tightening the lace) is coupled between the heel portion and the mid portion. Preferably, the dial is secured near an edge of the mid portion near an instep opening, and the lace is positioned in a passageway in the mid portion. The heel portion can comprise a flexible fabric that acts as a living hinge to facilitate pivotal movement of the heel portion relative to the mid portion at a pivot point positioned above the sole and rearward of the mid portion. Preferably, the heel portion includes a wide portion and a narrow portion (e.g., defining the pivot point) below the wide portion.
    Type: Application
    Filed: June 18, 2010
    Publication date: December 23, 2010
    Applicant: SPECIALIZED BICYCLE COMPONENTS, INC.
    Inventors: Gregory Roger Grenzke, Carl Darius Bird, John Figueiredo