Patents by Inventor Roger Wolfertz

Roger Wolfertz 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).

  • Button, particularly for articles of clothing
    Patent number: 4928362
    Abstract: A button having a button shank adapted to be fastened to an article of clothing and a section forming a single piece with it which connects via a flexible bridge of material to a button plate. A bridge of material (B) which bears the section (A) and receives the buttoning forces concentrically surrounds the button shank, and the section (A) is developed as a surrounding button edge bead.
    Type: Grant
    Filed: October 20, 1988
    Date of Patent: May 29, 1990
    Assignee: Schaeffer GmbH
    Inventors: Wolfgang Collas, Gunter Wolfertz, Roger Wolfertz