Patents by Inventor Alexander Hoeflich

Alexander Hoeflich 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).

  • Bipolar plate, method of production, and use thereof
    Patent number: 12731796
    Abstract: The present invention relates to a bipolar plate for a low-temperature fuel cell, in particular for a polymer electrolyte fuel cell, including a metal substrate with a coating on a surface of the substrate, the coating including an organic polymer and an electroconductive filler. The organic polymer is formed by chemical reaction of at least two components, including a bi- or polyfunctional isocyanate compound as the first component and one or more compounds having at least two free hydroxy or amino groups, as the second component.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: September 8, 2026
    Assignee: EKPO Fuel Cell Technologies GmbH
    Inventors: Alexander Hoeflich, Michael Goetz, Alexander Groeh
  • BIPOLAR PLATE, METHOD OF PRODUCTION, AND USE THEREOF
    Publication number: 20220246952
    Abstract: The present invention relates to a bipolar plate for a low-temperature fuel cell, in particular for a polymer electrolyte fuel cell, including a metal substrate with a coating on a surface of the substrate, the coating including an organic polymer and an electroconductive filler. The organic polymer is formed by chemical reaction of at least two components, including a bi- or polyfunctional isocyanate compound as the first component and one or more compounds having at least two free hydroxy or amino groups, as the second component.
    Type: Application
    Filed: April 13, 2022
    Publication date: August 4, 2022
    Inventors: Alexander Hoeflich, Michael Goetz, Alexander Groeh