Patents by Inventor André Scharf

André Scharf 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).

  • METHOD FOR STRUCTURING METAL-CERAMIC SUBSTRATES, AND STRUCTURED METAL CERAMIC SUBSTRATE
    Publication number: 20240074064
    Abstract: The invention relates to a method for structuring metal-ceramic substrates and to a structured metal-ceramic substrate which can be used in particular in power electronics. In the method, a first metal-ceramic substrate and a second metal-ceramic substrate are etched, wherein, while being contacted with an etching solution that is capable of removing active metal from the bonding layer of the metal-ceramic substrates, the first metal-ceramic substrate and the second metal-ceramic substrate are positioned such that an orthogonal projection of the first metal-ceramic substrate onto a projection plane parallel to the metal layer of the first metal-ceramic substrate shades no more than 60% of the metal layer of the second metal-ceramic substrate.
    Type: Application
    Filed: November 5, 2021
    Publication date: February 29, 2024
    Inventors: Richard WACKER, Daniel SCHNEE, Andre SCHWÖEBEL, Juergen SCHARF
  • Use of polyglycerol partial esters as defoamers
    Patent number: 9738797
    Abstract: The present invention relates to the use of polyglycerol partial esters as defoamers, in particular in coating and paint applications, to defoamers comprising polyglycerol partial esters, and to corresponding polyglycerol partial esters.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: August 22, 2017
    Assignee: Evonik Deguesse GmbH
    Inventors: Margitta Nilewski, Philippe Favresse, André Scharf, Petra Gehrmann, Thomas Mettin, Michael Schwan, Oliver Springer, Tobias Wied
  • USE OF POLYGLYCEROL PARTIAL ESTERS AS DEFOAMERS
    Publication number: 20130281552
    Abstract: The present invention relates to the use of polyglycerol partial esters as defoamers, in particular in coating and paint applications, to defoamers comprising polyglycerol partial esters, and to corresponding polyglycerol partial esters.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 24, 2013
    Applicant: Evonik Industries AG
    Inventors: Margitta Nilewski, Philippe Favresse, André Scharf, Petra Gehrmann, Thomas Mettin, Michael Schwan, Oliver Springer, Tobias Wied