Patents by Inventor John Pietras

John Pietras 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).

  • Publication number: 20100151345
    Abstract: A solid oxide fuel cell includes an anode layer, an electrolyte layer over the anode layer, and a cathode layer over the electrolyte layer, wherein at least one of the anode layer and the cathode layer defines at least one gas channel, the gas channel containing at least one support structure. The support structure can have a cross-sectional shape of an I-beam, an arch, a tube defining holes along its length, a porous cylinder, or a U-shaped brace. The support structure can be open at a portion of the gas channel most proximate to the electrolyte layer.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 17, 2010
    Applicant: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: James A. Salvatore, John Pietras
  • Publication number: 20070237999
    Abstract: The present disclosure is directed to an integrated SOFC stack including, a first cell having a cathode layer, an electrolyte layer overlying the cathode layer, and an anode layer overlying the electrolyte layer. The SOFC stack also includes a second cell having a cathode layer, an electrolyte layer overlying the cathode layer, and an anode overlying the electrolyte layer. The SOFC stack further includes a ceramic interconnect layer between the first cell and the second cell, the ceramic interconnect layer having a first high temperature bonding region along the interfacial region between the first cell and the ceramic interconnect layer. The ceramic interconnect layer also includes a second high temperature bonding region along the interfacial region between the second cell and the ceramic interconnect layer.
    Type: Application
    Filed: April 4, 2007
    Publication date: October 11, 2007
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: William Donahue, Oh-Hun Kwon, F. Mahoney, John Pietras
  • Publication number: 20070178366
    Abstract: An SOFC component includes a first electrode, an electrolyte overlying the first electrode, and a second electrode overlying the electrolyte. The second electrode includes a bulk layer portion and a functional layer portion, the functional layer portion being an interfacial layer extending between the electrolyte and the bulk layer portion of the second electrode, wherein the bulk layer portion has a bimodal pore size distribution.
    Type: Application
    Filed: January 9, 2007
    Publication date: August 2, 2007
    Applicant: SAINT-GOBAIN CERAMICS & PLASTICS, INC.
    Inventors: F. Mahoney, John Pietras
  • Publication number: 20060186107
    Abstract: New methods are provided or manufacture ceramic resistive igniter elements that include sintering of the elements in the absence of substantially elevated pressures. Ceramic igniters also are provided that are obtainable from fabrication methods of the invention.
    Type: Application
    Filed: February 3, 2006
    Publication date: August 24, 2006
    Applicant: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Suresh Annavarapu, Taehwan Yu, John Pietras