Patents by Inventor Anna Grevé

Anna Grevé 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 Hydrophilicizing a Semifinished Element, and Electrode Element, Bipolar Element or Heat Exchanger Element Produced Thereby
    Publication number: 20220115672
    Abstract: The invention relates to a method for hydrophilicizing a semi-finished element, in particular an electrode element, a bipolar element and/or a heat exchanger element, made of a plastic material or plastic composite material containing at least one thermoplastic and/or at least one thermosetting plastic. In order that the wettability of the component surface for aqueous media can be increased with smaller structure changes, with lower costs and with less effort, provision is made for the hydrophilicizing to be caused at least partially by applying carbon particles at least in sections on at least one surface of the semi-finished element and the carbon particles to be applied by rubbing, pressurised gas jet and/or by electrostatics at least in sections on the at least one surface in such manner that the carbon particles remain adhered to the surface.
    Type: Application
    Filed: February 13, 2020
    Publication date: April 14, 2022
    Inventors: Lukas Kopietz, Jens Burfeind, Christian Doetsch, Anna Grevè, Peter Schwerdt
  • Method for producing fatty acid esters of monovalent or polyvalent alcohols using special hydroxy-functional quaternary ammonium compounds as catalysts
    Patent number: 8598377
    Abstract: The present invention relates to a method for producing fatty acid esters from fats and/or oils of biogenic origin by transesterification with monovalent or polyvalent alcohols in the presence of a special hydroxy-functional quaternary ammonium compound as the catalyst.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: December 3, 2013
    Assignees: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V., Balchem Corporation
    Inventors: Eckhard Weidner, Axel Kraft, Anna Grevé, Reinhard Broucek
  • Method for Producing Fatty Acid Esters of Monovalent or Polyvalent Alcohols Using Special Hydroxy-Functional Quaternary Ammonium Compounds as Catalysts
    Publication number: 20110300281
    Abstract: The present invention relates to a method for producing fatty acid esters from fats and/or oils of biogenic origin by transesterification with monovalent or polyvalent alcohols in the presence of a special hydroxy-functional quaternary ammonium compound as the catalyst.
    Type: Application
    Filed: October 21, 2009
    Publication date: December 8, 2011
    Applicants: Balchem Corporation, Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.
    Inventors: Eckhard Weidner, Axel Kraft, Anna Grevé, Reinhard Broucek