Patents by Inventor Fredrik Werner

Fredrik Werner 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 in connection with the production of paper or cardboard
    Patent number: 6517680
    Abstract: Method for manufacturing paper or cardboard in one or more plies in order to achieve a paper or cardboard product with an even quality. The method comprises determining a fiber composition of a broke paper or cardboard waste broke, fractionating the broke; and conveying at least one fiber fraction obtained thereby to a given ply in the paper or cardboard. In this way the fractionating is controlled so that the fiber composition in the fiber fraction obtained corresponds to a fiber composition in the input paper pulp for the given ply.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: February 11, 2003
    Assignee: Stora Kopparbergs Bergslags Aktiebolag (publ)
    Inventors: Mats Fredlund, Anders Moberg, Frank Peng, Fredrik Werner