Patents by Inventor Stefan Gräter

Stefan Gräter 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).

  • Structuring method and component with a structured surface
    Patent number: 8192668
    Abstract: A method for producing a structured surface (10) which has a plurality of filamentary projections (11), comprises the steps of mutual contacting of a stamp face (21.1, 21.2) and a pattern face (31.1, 31.2), whereas at least one of the stamp face (21.1, 21.2) and the pattern face (31.1, 31.2) having a flowable substance (20), separation movement of the stamp face (21.1, 21.2) and the pattern face (31.1, 31.2), whereas connecting filament strands (22) of the flowable substance (20) are drawn between the stamp face (21.1, 21.2) and the pattern face (31.1, 31.2), and interruption of the connecting filament strands (22), so that the filamentary projections (11) are formed on at least one of the stamp face (21.1, 21.2) and the pattern face (31.1, 31.2). Components (100) that are produced by this method are described.
    Type: Grant
    Filed: February 14, 2007
    Date of Patent: June 5, 2012
    Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.
    Inventors: Joachim Spatz, Stefan Graeter
  • Surface-structured substrate and production thereof
    Patent number: 7951423
    Abstract: The invention relates to a method for production of a surface-structured substrate, comprising the steps: (i) production of a first substrate, nanostructured with inorganic nanoclusters on at least one surface, (ii) application of a substrate material for a second substrate, different from the first material to the nanostructured surface of the first substrate as obtained in step (i) and (iii) separation of the first substrate from the second substrate of step (ii), including the inorganic nanoclusters to give a second substrate nanostructured with the nanoclusters.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: May 31, 2011
    Assignee: Max-Planck-Gesellschaft zur Fördenrung der Wissenschaften e.V.
    Inventor: Stefan Gräter
  • STRUCTURING METHOD AND COMPONENT WITH A STRUCTURED SURFACE
    Publication number: 20090053472
    Abstract: A method for producing a structured surface (10) which has a plurality of filamentary projections (11), comprises the steps of mutual contacting of a stamp face (21.1, 21.2) and a pattern face (31.1, 31.2), whereas at least one of the stamp face (21.1, 21.2) and the pattern face (31.1, 31.2) having a flowable substance (20), separation movement of the stamp face (21.1, 21.2) and the pattern face (31.1, 31.2), whereas connecting filament strands (22) of the flowable substance (20) are drawn between the stamp face (21.1, 21.2) and the pattern face (31.1, 31.2), and interruption of the connecting filament strands (22), so that the filamentary projections (11) are formed on at least one of the stamp face (21.1, 21.2) and the pattern face (31.1, 31.2). Components (100) that are produced by this method are described.
    Type: Application
    Filed: February 14, 2007
    Publication date: February 26, 2009
    Applicant: Max-Planck-Gesellschaft zur Foerderung der Wissens chaften e.V.
    Inventors: Joachim Spatz, Stefan Graeter