Patents by Inventor Alexander Karpenko

Alexander Karpenko 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).

  • Gas diffusion electrodes and process for production thereof
    Patent number: 9714472
    Abstract: A gas diffusion electrode is described, especially for use in chloralkali electrolysis, said gas diffusion electrode having finely divided components on the liquid side. The electrode is notable for a low perviosity to gases and a lower operating voltage.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: July 25, 2017
    Assignee: COVESTRO DEUTSCHLAND AG
    Inventors: Andreas Bulan, Jürgen Kintrup, Norbert Schmitz, Alexander Karpenko, Jens Aβmann
  • ELECTROCHEMICAL PROCESS FOR THE REDUCTION OF MOLECULAR OXYGEN
    Publication number: 20170107634
    Abstract: The present invention relates to an electrochemical process for the reduction of molecular oxygen in alkaline solutions in the presence of nitrogen-doped carbon nanotubes, in which no hydrogen peroxide forms as a by-product of the reduction.
    Type: Application
    Filed: November 18, 2016
    Publication date: April 20, 2017
    Inventors: Jens AßMANN, Aurel WOLF, Leslaw MLECZKO, Alexander KARPENKO, Volker MICHELE
  • METHOD FOR PRODUCING CO AND/OR H2 IN AN ALTERNATING OPERATION BETWEEN TWO OPERATING MODES
    Publication number: 20150129805
    Abstract: The invention relates to a method for producing syngas in an alternating operation between two operating modes. The method has the steps of providing a flow reactor; endothermically reacting carbon dioxide with hydrocarbons, water, and/or hydrogen in the flow reactor, at least carbon monoxide being formed as the product, under the effect of heat generated electrically by one or more heating elements (110, 111, 112, 113); and at the same time exothermically reacting hydrocarbons, carbon monoxide, and/or hydrogen as reactants in the flow reactor. The exothermic reaction releases a heat quantity Q1, the electric heating of the reactor releases a heat quantity Q2, and the exothermic reaction and the electric heating of the reactor are operated such that the sum of Q1 and Q2 is greater than or equal to the heat quantity Q3 which is required for an equilibrium yield Y of the endothermic reaction of ?90%.
    Type: Application
    Filed: March 12, 2013
    Publication date: May 14, 2015
    Inventors: Alexander Karpenko, Kristian Voelskow, Emanuel Kockrick, Albert Tulke, Daniel Gordon Duff, Stefanie Eiden, Oliver Felix-Karl Schlüter, Vanessa Gepert, Ulrich Nieken, René Kelling
  • GAS DIFFUSION ELECTRODES AND PROCESS FOR PRODUCTION THEREOF
    Publication number: 20130078536
    Abstract: A gas diffusion electrode is described, especially for use in chloralkali electrolysis, said gas diffusion electrode having finely divided components on the liquid side. The electrode is notable for a low perviosity to gases and a lower operating voltage.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 28, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Andreas Bulan, Jürgen Kintrup, Norbert Schmitz, Alexander Karpenko, Jens Aßmann
  • ELECTROCHEMICAL METHOD FOR REDUCING MOLECULAR OXYGEN
    Publication number: 20110233071
    Abstract: Electrochemical process for the reduction of molecular oxygen in alkaline solutions in the presence of nitrogen-doped carbon nanotubes, in which no hydrogen peroxide forms as a by-product of the reduction.
    Type: Application
    Filed: December 5, 2009
    Publication date: September 29, 2011
    Applicant: BAYER TECHNOLOGOGY SERVICES GMBH
    Inventors: Jens Assmann, Aurel Wolf, Leslaw Mileczko, Alexander Karpenko, Volker Michele