Patents by Inventor Ernst Putzgruber

Ernst Putzgruber 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).

  • Steel alloy for cutting tools
    Patent number: 7655101
    Abstract: A steel alloy for cutting tools, wherein the alloy comprises C, Si, Mn, Cr, Mo, W, V, Al, P, S and N within the concentration ranges recited in the claims. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: February 2, 2010
    Assignee: Boehler Edelstahl GmbH
    Inventors: Ernst Putzgruber, Devrim Caliskanoglu
  • STEEL ALLOY FOR CUTTING TOOLS
    Publication number: 20080101980
    Abstract: A steel alloy for cutting tools, wherein the alloy comprises C, Si, Mn, Cr, Mo, W, V, Al, P, S and N within the concentration ranges recited in the claims. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: October 26, 2007
    Publication date: May 1, 2008
    Applicant: BOEHLER EDELSTAHL GmbH
    Inventors: Ernst Putzgruber, Devrim Caliskanoglu