Patents by Inventor Guenter Luft

Guenter Luft 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).

  • Direct methanol fuel cell (DMFC)
    Patent number: 6509112
    Abstract: The invention relates to a DMFC in which an evaporation apparatus is connected before the cell. The fuel, which is predominantly a methanol/water mixture with a possible admixture of inert gas, is variable in its composition, whereby the respective methanol/water and, if warranted, inert gas mixture, can be adjusted in load-dependent fashion. Moreover, the invention relates to a method for operating a DMFC apparatus in which the fuel is present in the anode chamber in gaseous form.
    Type: Grant
    Filed: December 28, 1998
    Date of Patent: January 21, 2003
    Assignee: Siemens Aktiengesellschaft
    Inventors: Günter Luft, Kurt Pantel, Manfred Waidhas
  • Method for operating a liquid-cooled fuel cell battery, and associated fuel cell battery
    Publication number: 20020081467
    Abstract: A liquid-cooled fuel cell battery and a method for operating such a battery includes reducing the heat capacity of the fuel cell battery at a start time by removing at least some of the cooling liquid from the cooling system when the battery is being switched off to improve the starting performance of the battery.
    Type: Application
    Filed: November 19, 2001
    Publication date: June 27, 2002
    Inventors: Guenter Luft, Konrad Mund, Rittmar Von Helmolt
  • Measuring device for determining the concentration of alcohols
    Patent number: 5624538
    Abstract: A measuring device for determining the concentration of low-molecular alcohols in water or acid having the following construction:a porous anode for the electrochemical oxidation of alcohola cathode for the electrochemical reduction of oxygenan ion-conducting membrane arranged between the anode and cathodea diffusion-limiting membrane arranged on the side of the anode facing away from the ion-conducting membrane.
    Type: Grant
    Filed: May 22, 1995
    Date of Patent: April 29, 1997
    Assignee: Siemens Aktiengesellschaft
    Inventors: Guenter Luft, Gerhard Starbeck