Patents by Inventor Lars-Åke Peterson

Lars-Åke Peterson 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).

  • Surface treated security paper and method and device for producing surface treated security paper
    Patent number: 6174586
    Abstract: The present invention relates to security paper (1) formed from base paper provided with a surface treatment layer on at least one side of the paper, characterized in that the layer thickness locally deviates markedly from the layer (10) thickness of the remaining dominant paper surface, and in that the local deviation forms distinctive mark (2) in the paper. The present invention also relates to a method and to a device for producing surface treated security paper.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: January 16, 2001
    Assignee: Holmen AB
    Inventor: Lars-Åke Peterson