Patents by Inventor Sheryl Heather Ehrman

Sheryl Heather Ehrman 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).

  • Solid oxide fuel cell (SOFC) anode materials
    Patent number: 7842200
    Abstract: The invention relates to compositions and composite particles that may be employed as anode materials for Solid Oxide Fuel Cells (SOFCs). The invention particularly relates to novel metallic SOFC anode materials, which preferably comprise metallic nickel (Ni), copper (Cu), especially if the Ni/Cu oxide has been stabilized with yttrium (Y) oxide (e.g., Y2O3) and/or zirconium (Zr) oxide (e.g., ZrO2) composition(s) (“YSZ”). Such compositions may additionally comprise a cerium (Ce) oxide (such as CeO2) (e.g., Ni/YSZ/CeO2). The invention particularly concerns such compositions and particles produced through the use of direct deposition or Flame Spray Pyrolysis so as to provide a controlled morphology and chemical composition.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: November 30, 2010
    Assignee: University of Maryland, College Park
    Inventors: Sheryl Heather Ehrman, Ranjan Kumar Pati, Osifo Akhuemonkhan