Patents by Inventor Siegfreid Höfchen

Siegfreid Höfchen 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).

  • Method of producing multicolored films
    Patent number: 7927446
    Abstract: Multicolored film composites are produced by laminating a support film with at least two different-colored top films. The surface of the top films or of the film composite is provided with a surface structure. The support film is a film of thermoplastic foam material, and the top films are laminated on in temporal succession and in overlapping relationship onto the support film.
    Type: Grant
    Filed: April 30, 2008
    Date of Patent: April 19, 2011
    Assignee: Benecke-Kaliko AG
    Inventors: Eberhard Rost, Siegfreid Höfchen, Matthias Reik