Patents by Inventor Bertil Waldén

Bertil Waldén 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 alloy
    Patent number: 6905652
    Abstract: An austenitic alloy with the following composition, in weight-%: Cr 23-30 Ni 25-35 Mo 3-6 Mn 1-6 N ??0-0.40 C up to 0.05 Si up to 1.0 S up to 0.02 Cu up to 3.0 and the balance iron and normally occurring impurities and additions.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: June 14, 2005
    Assignee: Sandvik AB
    Inventors: Charlotte Ulfvin, Bertil Waldén