Patents by Inventor Janne Koskenniska

Janne Koskenniska 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).

  • Austenitic stainless steel
    Patent number: 9771641
    Abstract: The invention relates to an austenitic stainless steel with improved pitting corrosion resistance and improved strength. The stainless steel contains in weight % less than 0, % carbon (C), 0,2-0,6% silicon (Si), 1.0-2.0% manganese (Mn), 19.0-21.0% chromium (Cr), 7.5-9.5% nickel (Ni), 0.4-1.4% molybdenum (Mo), less than 1.0% copper (Cu), 0.10-0.25% nitrogen (N), optionally less than 1.0% cobalt (Co), optionally less than 0.006% boron (B), and the rest being iron (Fe) and inevitable impurities.
    Type: Grant
    Filed: September 26, 2013
    Date of Patent: September 26, 2017
    Inventor: Janne Koskenniska
  • AUSTENITIC STAINLESS STEEL
    Publication number: 20150247228
    Abstract: The invention relates to an austenitic stainless steel with improved pitting corrosion resistance and improved strength. The stainless steel contains in weight % less than 0.03% carbon (C), 0.2-0.6% silicon (Si), 1.0-2.0% manganese (Mn), 19.0-21.0% chromium (Cr), 7.5-9.5% nickel (Ni), 0.4-1.4% molybdenum (Mo), less than 1.0% copper (Cu), 0.10-0.25% nitrogen (N), optionally less than 1.0% cobalt (Co), optionally less than 0.006% boron (B), and the rest being iron (Fe) and inevitable impurities.
    Type: Application
    Filed: September 26, 2013
    Publication date: September 3, 2015
    Applicant: OUTOKUMPU OYJ
    Inventor: Janne Koskenniska