Patents by Inventor Karl-Johan Stefansson

Karl-Johan Stefansson 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 depositing an oxidation and fatigue resistant MCrAIY-coating
    Publication number: 20040079648
    Abstract: A method of depositing a layer (6) of highly oxidation and fatigue resistant MCrAlY-coating by an electroplated process has been described. A relative thin coating on an industrial gas turbine component was applied with a thickness control of ±20 &mgr;m of the thickness of the applied layer (6) on gas turbine articles (1). The said MCrAlY coatings comprise an addition of (wt.-%) 0.01 to 3% Fe. In addition to Fe the MCrAlY coatings may contain 0.5-2.5% Si, 0-1.5% Hf, 0.01-0.2% Zr and 0-2% Ta, alone or in combination.
    Type: Application
    Filed: October 15, 2003
    Publication date: April 29, 2004
    Applicant: ALSTOM (Switzerland) LTD.
    Inventors: Abdus Suttar Khan, Hans-Peter Bossmann, Thomas Duda, Alexander Schnell, Karl-Johan Stefansson, Christoph Toennes