Patents by Inventor Pia Hellström

Pia Hellström 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 treating surface of fibreboard with hydrogen peroxide
    Patent number: 6653264
    Abstract: The invention relates to a method for surface treatment of board based on biological fibrous material comprising a step of contacting the surface of said board based on biological fibrous material with an aqueous solution containing hydrogen peroxide. The invention further concerns a composition suitable such treatment.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: November 25, 2003
    Assignee: Akzo Nobel N.V.
    Inventors: Carl-Erik Sundman, Pia Hellström, Pär Nilsson