Patents by Inventor Anders Bergovist

Anders Bergovist 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).

  • Process for bleaching pulp with adsorption of metals
    Patent number: 6315862
    Abstract: A process for bleaching pulp, in which, after fiber liberation, a first filtrate containing metals, principally in ionic form, is separated off from the pulp, and supplied downstream to the pulp flow after a bleaching stage.
    Type: Grant
    Filed: March 15, 1995
    Date of Patent: November 13, 2001
    Assignee: Kvaerner Pulping Technologies
    Inventors: Anders Bergovist, Hakan Dahllof