Patents by Inventor Andrea Burdack-Freitag

Andrea Burdack-Freitag 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).

  • Publication number: 20200173945
    Abstract: The application describes a method for calibrating metal oxide gas sensors using impedance spectroscopy, comprising the steps of: determining the impedance spectrum of the metal oxide gas sensor in a gas mixture in the absence of an analyte in order to determine a base line, and determining the impedance spectrum of the metal oxide gas sensor in the gas mixture in the presence of the analyte in at least a known concentration. The use of this method and an apparatus which can be used to carry out this method are also described.
    Type: Application
    Filed: May 3, 2018
    Publication date: June 4, 2020
    Inventors: Andrea Burdack-Freitag, Klaus Sedlbauer, Christian Scherer, Maximilian Taubenberger, Leonhard Hillmeier
  • Publication number: 20120121898
    Abstract: The present invention relates to a polymer material with a functionalised surface and also to a method for in situ functionalisation of polymer materials. Furthermore, the invention comprises the use of the polymer materials.
    Type: Application
    Filed: November 15, 2011
    Publication date: May 17, 2012
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Andrea Burdack-Freitag, Andreas Schmohl, Michael Rampfl, Klaus Breuer
  • Publication number: 20100291275
    Abstract: A method of providing a flavour or a fragrance to a composition, which includes adding to the composition a compound of the formula I in which R1 and R3 are independently selected from at least one of H, C1-C10 straight chain alkyl or branched chain alkyl, and R2 and R4 are independently selected from at least one of C1-C10 straight chain alkyl or branched chain alkyl. Flavored and fragranced products including a compound of the Formula I are also provided.
    Type: Application
    Filed: March 15, 2007
    Publication date: November 18, 2010
    Inventors: Stefan Michael Furrer, Peter Schieberle, Andrea Burdack-Freitag