Patents by Inventor Dan Sigfridsson

Dan Sigfridsson 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: 20150064390
    Abstract: A core for inclusion in a building panel. The core presents a pair of substantially parallel major surfaces, and comprises a plurality of first material blocks, extending between said major surfaces and arranged with their respective principal directions substantially parallel with said major surfaces and extend 90°±45° to a principal direction of the core; and a plurality of second material blocks, extending between said major surfaces and being arranged alternatingly with said first material blocks along the principal direction of the core. The first material blocks and said second material blocks differ substantially with respect to at least one material property.
    Type: Application
    Filed: November 7, 2014
    Publication date: March 5, 2015
    Inventors: Peter Gustafsson, Dan Sigfridsson