Patents by Inventor Anna Lindwall

Anna Lindwall 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).

  • Device for processing a metal surface
    Patent number: 6641706
    Abstract: The invention relates to a device to be used in processing of a surface of metal object to be processed which surface is essentially continuously in onwards motion. According to the invention a processing agent (1) is to be directed to the surface (5) to be processed by nozzles (6) in at least one position so that at most 70 per cent of the surface (5) to be processed is under processing in one position of directing processing agent (1).
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: November 4, 2003
    Assignee: Outokumpu Oyj
    Inventors: Reine Johan Thorbjörn Lindwall, Anna Lindwall, Torbjörn Lindwall