Patents by Inventor Ingrid Schemmel

Ingrid Schemmel 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).

  • Cold work steel article
    Patent number: 7682417
    Abstract: A cold work steel article. The article comprises a material which comprises, in addition to Fe, the elements C, Si, Mn, P, S, Cr, Mo, Ni, V, W, Cu, Co, Al, N and O in certain concentrations and has been produced by by a powder metallurgical process. 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. 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: April 23, 2004
    Date of Patent: March 23, 2010
    Assignee: Bohler Edelstahl GmbH
    Inventors: Ingrid Schemmel, Stefan Marsoner, Werner Liebfahrt
  • Cold work steel article
    Publication number: 20050002819
    Abstract: A cold work steel article. The article comprises a material which comprises, in addition to Fe, the elements C, Si, Mn, P, S, Cr, Mo, Ni, V, W, Cu, Co, Al, N and O in certain concentrations and has been produced by by a powder metallurgical process. 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. 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: April 23, 2004
    Publication date: January 6, 2005
    Applicant: Bohler Edelstahl GmbH
    Inventors: Ingrid Schemmel, Stefan Marsoner, Werner Liebfahrt