Patents by Inventor Ralf Heinzmann

Ralf Heinzmann 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).

  • Wooden floor
    Patent number: 7210276
    Abstract: The invention relates to a wooden floor, consisting of a hardenable adhesive (12) which is painted onto a floor base (10) in a continuous layer, and covering elements (16) consisting of wood or a wood material that are joined to the adhesive in its entirety by their surface (14) to be glued. According to the invention, the adhesive layer (12) has a thickness of 0.5 to 5 mm and the combined tension and shear strength of the adhesive (12), in its hardened state, is les than that of the floor base (10) and is at most 1.2 N/mm2, in order to obtain a floor covering with excellent dimensional stability.
    Type: Grant
    Filed: June 15, 2000
    Date of Patent: May 1, 2007
    Assignee: Sika Chemie GmbH
    Inventors: Elke Kraft, Thorsten Kraus, Juergen Koessler, Ralf Heinzmann, Roland Schneider, Hans-Christoph Thielemann, Morten Muschak, Norbert Singer, Michael Geissbuehler, Josef Wolf, Beat Maerki, Dieter Geng, Ueli Pfenninger, Philippe De Vriendt, Fabio Guerrini