Patents by Inventor Marianne Videm

Marianne Videm 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).

  • Corrosion resistant Mg based alloy containing Al, Si, Mn and RE metals
    Patent number: 6793877
    Abstract: Magnesium alloy with improved corrosion resistance comprising magnesium, 1.5-5 weight % Al, 0.6-1.4 weight % Si, 0.01-0.6 weight % Mn and 0.01-0.4 weight % RE. Method of improving the corrosion resistance of magnesium, aluminium, silicon alloys where Mn is added in order to reduce FE impurities, by keeping both Mn and Fe at a low level by adding small amounts of RE.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: September 21, 2004
    Assignee: Norsk Hydro ASA
    Inventors: Ketil Pettersen, Marianne Videm, Jan Ivar Skar