Patents by Inventor Stephan Siegmann

Stephan Siegmann 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).

  • Patent number: 7998523
    Abstract: The invention relates to open-pore biocompatible surface layers for implants, which layers are arranged over virgin surfaces of the implants, wherein pores of the open-pore surface layers are connected to form coherent pore networks and the surface layers have a specific internal surface area of ?0.06 ?m/?m2, preferably ?0.035 ?m/?m2 and especially ?0.025 ?m/?m2, measured by image analysis as a 2D-boundary line per unit of surface area in a metallographic microsection at 100× magnification. The invention further relates to methods of producing such surface layers, to implants coated therewith and to possible uses of the surface layers.
    Type: Grant
    Filed: October 12, 2006
    Date of Patent: August 16, 2011
    Assignee: Smith and Nephew Orthopaedics AG
    Inventors: Reto Lerf, Hans Schmotzer, Stephan Siegmann
  • Publication number: 20100004753
    Abstract: The invention relates to an open-pore biocompatible surface layer for an implant, which layer is arranged over a virgin surface of the implant, wherein pores of the open-pore surface layer are connected to form a coherent pore network and the surface layer has an internal surface area of ?0.06 ?m/?m2, preferably ?0.035 ?m/?m2 and especially ?0.025 ?m/?m2, measured by image analysis as a 2D-boundary line per unit of surface area in a metallographic microsection at 100× magnification. The invention further relates to methods of producing such a surface layer, to an implant coated therewith and to possible uses of the surface layer.
    Type: Application
    Filed: October 12, 2006
    Publication date: January 7, 2010
    Inventors: Reto Lerf, Hans Schmotzer, Stephan Siegmann