Patents by Inventor Johann Rothfischer

Johann Rothfischer 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).

  • Stack for an electrical energy accumulator
    Patent number: 9768480
    Abstract: A stack for an electrical energy accumulator is provided having at least one storage cell, which in turn has a storage electrode and an air electrode that is connected to an air supply device, the air supply device having an air distribution plate, wherein the stack also has a water vapor supply device which is in contact with the storage electrode and the air distribution plate has at least one element of the water vapor supply device.
    Type: Grant
    Filed: January 11, 2013
    Date of Patent: September 19, 2017
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Drenckhahn, Horst Greiner, Johann Rothfischer
  • STACK FOR AN ELECTRICAL ENERGY ACCUMULATOR
    Publication number: 20150010834
    Abstract: A stack for an electrical energy accumulator is provided having at least one storage cell, which in turn has a storage electrode and an air electrode that is connected to an air supply device, the air supply device having an air distribution plate, wherein the stack also has a water vapour supply device which is in contact with the storage electrode and the air distribution plate has at least one element of the water vapour supply device.
    Type: Application
    Filed: January 11, 2013
    Publication date: January 8, 2015
    Inventors: Wolfgang Drenckhahn, Horst Greiner, Johann Rothfischer
  • Fuel cell module
    Patent number: 7261965
    Abstract: A fuel cell module includes a number of series-connected fuel cells forming a fuel cell stack. To reliably ensure that there is no risk of the fuel cell stack buckling, even where a comparatively large number of fuel cells are grouped to form a fuel cell stack, the fuel cell stack is surrounded by a stabilizing casing, at least in a middle area as seen in the longitudinal direction.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: August 28, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventors: Arno Mattejat, Igor Mehltretter, Johann Rothfischer
  • Fuel cell module
    Publication number: 20040043275
    Abstract: A fuel cell module includes a number of series-connected fuel cells forming a fuel cell stack. To reliably ensure that there is no risk of the fuel cell stack buckling, even where a comparatively large number of fuel cells are grouped to form a fuel cell stack, the fuel cell stack is surrounded by a stabilizing casing, at least in a middle area as seen in the longitudinal direction.
    Type: Application
    Filed: March 26, 2003
    Publication date: March 4, 2004
    Inventors: Arno Mattejat, Igor Mehltretter, Johann Rothfischer