Patents by Inventor Ifan Erfyl Lester Stephens

Ifan Erfyl Lester Stephens 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).

  • PLATINUM AND PALLADIUM ALLOYS SUITABLE AS FUEL CELL ELECTRODES
    Publication number: 20150325861
    Abstract: The present invention concerns electrode catalysts used in fuel cells, such as proton exchange membrane (PEM) fuel cells. The invention is related to the reduction of the noble metal content and the improvement of the catalytic5 efficiency by low level substitution of the noble metal to provide new and innovative catalyst compositions in fuel cell electrodes. The novel electrode catalysts of the invention comprise a noble metal selected from Pt and Pd alloyed with a lanthanide metal.
    Type: Application
    Filed: July 5, 2013
    Publication date: November 12, 2015
    Inventors: Ifan Erfyl Lester Stephens, Jan Rossmeist, Maria Escudero Escribano, Amau Verdaguer-Casadevall, Paolo Malacrida, Ulrick Grønbjerg Vej-Hansen, Brian Peter Knudsen, Anders Konge Jepsen, Ib Chorkendorff
  • PLATINUM AND PALLADIUM ALLOYS SUITABLE AS FUEL CELL ELECTRODES
    Publication number: 20150295249
    Abstract: The present invention concerns electrode catalysts used in fuel cells, such as proton exchange membrane (PEM) fuel cells. The invention is related to the reduction of the noble metal content and the improvement of the catalytic efficiency by low level substitution of the noble metal to provide new and innovative catalyst compositions in fuel cell electrodes. The novel electrode catalysts of the invention comprise a noble metal selected from Pt and Pd alloyed with an alkaline earth metal.
    Type: Application
    Filed: November 21, 2013
    Publication date: October 15, 2015
    Inventors: Ifan Erfyl Lester Stephens, Maria Escudero Escribano, Arnau Verdaguer-Casadevall, Paolo Malacrida, Ulrik Grønbjerg Vej-Hansen, Jakob Schiøtz, Jan Rossmeisl, Ib Chorkendorff