Patents by Inventor Dirk Markgraf

Dirk Markgraf 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).

  • Polyester Polymer Compositions
    Publication number: 20240084081
    Abstract: A fiber reinforced polyester polymer composition is disclosed that contains at least one tribological modifier. The tribological modifier may comprise an ultra-high molecular weight silicone alone or in combination with polytetrafluoroethylene particles. The composition not only has excellent tensile properties but also can produce a low friction surface.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 14, 2024
    Inventors: Qamer Zia, Kirsten Markgraf, Dirk Zierer
  • METHOD AND DEVICE FOR THREE-DIMENSIONAL MEASUREMENT OF A DENTAL MODEL
    Publication number: 20110229842
    Abstract: A new three-dimensional modelling system for dental surfaces has presently been discovered. The modelling system may include a light source and a camera. Once a three-dimensional model is produced, it can be used, for example, to assess the performance of tooth cleaning products.
    Type: Application
    Filed: May 27, 2011
    Publication date: September 22, 2011
    Inventors: Uwe Bielfeldt, Reiner Engelmohr, Dirk Markgraf, Michael Stolper