Patents by Inventor M. LeVan

M. LeVan 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).

  • Partial pressure swing adsorption system for providing hydrogen to a vehicle fuel cell
    Publication number: 20070017367
    Abstract: A method of operating a fuel cell system includes providing a fuel inlet stream into a fuel cell stack, operating the fuel cell stack to generate electricity and a hydrogen containing fuel exhaust stream, separating at least a portion of hydrogen contained in the fuel exhaust stream using partial pressure swing adsorption, and providing the hydrogen separated from the fuel exhaust stream to a hydrogen storage vessel or to a hydrogen using device.
    Type: Application
    Filed: July 25, 2005
    Publication date: January 25, 2007
    Inventors: James McElroy, John Finn, M. LeVan, Swaminathan Venkataraman, Fred Mitlitsky
  • Gas separation method and apparatus using partial pressure swing adsorption
    Publication number: 20070017368
    Abstract: A four-step partial pressure swing adsorption method and apparatus is provided for gas separation, such as for recovering fuel from the fuel exhaust of a fuel cell stack.
    Type: Application
    Filed: July 25, 2005
    Publication date: January 25, 2007
    Inventors: M. Levan, John Finn, James McElroy
  • Fuel cell anode exhaust fuel recovery by adsorption
    Publication number: 20070017369
    Abstract: A method of operating a fuel cell system includes providing a fuel inlet stream into a fuel cell stack, operating the fuel cell stack to generate electricity and a hydrogen containing fuel exhaust stream, separating at least a portion of hydrogen contained in the fuel exhaust stream using partial pressure swing adsorption, and providing the hydrogen separated from the fuel exhaust stream into the fuel inlet stream.
    Type: Application
    Filed: July 25, 2005
    Publication date: January 25, 2007
    Inventors: M. LeVan, John Finn, James McElroy