Patents by Inventor Wolf D. Knapp

Wolf D. Knapp 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 for producing reinforced plastic profiles having improved thermal insulation for window construction
    Patent number: 8728362
    Abstract: The present invention relates to a method for producing plastic profiles having a foam core in a coextrusion method, a material which can be foamed being co-extruded into the cavity of a plastic hollow profile, in particular in the solid state, and foamed therein. The method according to the invention is suitable in particular for the production of sash and frame profiles of windows.
    Type: Grant
    Filed: November 13, 2008
    Date of Patent: May 20, 2014
    Assignee: Sika Technology AG
    Inventor: Wolf D. Knapp
  • METHOD FOR PRODUCING REINFORCED PLASTIC PROFILES HAVING IMPROVED THERMAL INSULATION FOR WINDOW CONSTRUCTION
    Publication number: 20100281811
    Abstract: The present invention relates to a method for producing plastic profiles having a foam core in a coextrusion method, a material which can be foamed being co-extruded into the cavity of a plastic hollow profile, in particular in the solid state, and foamed therein. The method according to the invention is suitable in particular for the production of sash and frame profiles of windows.
    Type: Application
    Filed: November 13, 2008
    Publication date: November 11, 2010
    Inventor: Wolf D. Knapp