Patents by Inventor Sarah Ball

Sarah Ball 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: 20180166695
    Abstract: A platinum alloy catalyst PtXY, wherein X is nickel, cobalt, chromium, copper, titanium or manganese and Y is tantalum or niobium, characterised in that in the alloy the atomic percentage of platinum is 46-75 at %, of X is 1-49 at % and of Y is 1-35 at %; provided that the alloy is not 66 at % Pt20 at % Cr14 at % Ta or 50 at % Pt, 25 at % Co, 25 at % Ta is disclosed. The catalyst has particular use as an oxygen reduction catalyst in fuel cells, and in particular in phosphoric acid fuel cells.
    Type: Application
    Filed: February 6, 2018
    Publication date: June 14, 2018
    Inventors: SARAH BALL, THOMAS ROBERTSON RALPH, BRIAN RONALD THEOBALD, DAVID THOMPSETT
  • Patent number: 9960430
    Abstract: A platinum alloy catalyst PtXY, wherein X is nickel, cobalt, chromium, copper, titanium or manganese and Y is tantalum or niobium, characterised in that in the alloy the atomic percentage of platinum is 46-75 at %, of X is 1-49 at % and of Y is 1-35 at %; provided that the alloy is not 66 at % Pt20 at % Cr14 at % Ta or 50 at % Pt, 25 at % Co, 25 at % Ta is disclosed. The catalyst has particular use as an oxygen reduction catalyst in fuel cells, and in particular in phosphoric acid fuel cells.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: May 1, 2018
    Assignee: JOHNSON MATTHEY FUEL CELLS LIMITED
    Inventors: Sarah Ball, Thomas Robertson Ralph, Brian Ronald Theobald, David Thompsett
  • Patent number: 9923210
    Abstract: A platinum alloy catalyst PtXY, wherein X is nickel, cobalt, chromium, copper, titanium or manganese and Y is tantalum or niobium, characterised in that in the alloy the atomic percentage of platinum is 46-75 at %, of X is 1-49 at % and of Y is 1-35 at %; provided that the alloy is not 66 at % Pt20 at % Cr14 at % Ta or 50 at % Pt, 25 at % Co, 25 at % Ta is disclosed. The catalyst has particular use as an oxygen reduction catalyst in fuel cells, and in particular in phosphoric acid fuel cells.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: March 20, 2018
    Assignee: Johnson Matthey Fuel Cells Limited
    Inventors: Sarah Ball, Thomas Robertson Ralph, Brian Ronald Theobald, David Thompsett
  • Publication number: 20140205928
    Abstract: A platinum alloy catalyst PtXY, wherein X is nickel, cobalt, chromium, copper, titanium or manganese and Y is tantalum or niobium, characterised in that in the alloy the atomic percentage of platinum is 46-75 at %, of X is 1-49 at % and of Y is 1-35 at %; provided that the alloy is not 66 at % Pt 20 at % Cr14 at % Ta or 50 at % Pt, 25 at % Co, 25 at % Ta is disclosed. The catalyst has particular use as an oxygen reduction catalyst in fuel cells, and in particular in phosphoric acid fuel cells.
    Type: Application
    Filed: March 25, 2014
    Publication date: July 24, 2014
    Applicant: JOHNSON MATTHEY FUEL CELLS LIMITED
    Inventors: Sarah BALL, Thomas Robertson RALPH, Brian Ronald THEOBALD, David THOMPSETT
  • Publication number: 20120046161
    Abstract: A platinum alloy catalyst PtXY, wherein X is nickel, cobalt, chromium, copper, titanium or manganese and Y is tantalum or niobium, characterised in that in the alloy the atomic percentage of platinum is 46-75 at %, of X is 1-49 at % and of Y is 1-35 at %; provided that the alloy is not 66 at % Pt20 at % Cr14 at % Ta or 50 at % Pt, 25 at % Co, 25 at % Ta is disclosed. The catalyst has particular use as an oxygen reduction catalyst in fuel cells, and in particular in phosphoric acid fuel cells.
    Type: Application
    Filed: February 3, 2010
    Publication date: February 23, 2012
    Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Sarah Ball, Thomas Robertson Ralph, Brian Ronald Theobald, David Thompsett
  • Publication number: 20070292742
    Abstract: A fuel cell system includes one or more fuel cell stacks. The fuel cell stack(s) include a first group of membrane electrode assemblies and a second group of membrane electrode assemblies, wherein the first and second groups of membrane electrode assemblies are connected in series such that a feed stream supplied to the first group is subsequently supplied to the second group. The anodes of the membrane electrode assemblies of the first group include an electrocatalyst for the electrochemical oxidation of carbon monoxide and can reduce the concentration of carbon monoxide in a feed stream comprising carbon monoxide before it is supplied to the membrane electrode assemblies of the second group.
    Type: Application
    Filed: May 19, 2005
    Publication date: December 20, 2007
    Inventors: Sarah Ball, David Thompsett
  • Publication number: 20070292743
    Abstract: An anode structure for incorporation into a fuel cell includes a first region having one or more electrocatalysts, in which the first region is adjacent to the fuel inlet when the anode structure is incorporated into a fuel cell, and a second region having one or more electrocatalysts, in which the second region is adjacent to the fuel outlet when the anode structure is incorporated into a fuel cell. The first region is better at promoting the electrochemical oxidation of carbon monoxide than the second region.
    Type: Application
    Filed: May 19, 2005
    Publication date: December 20, 2007
    Inventors: Sarah Ball, David Thompsett
  • Patent number: 7176157
    Abstract: An anode structure comprising a ruthenium catalyst is disclosed. The catalyst consists essentially of ruthenium deposited on a conducting support wherein the ruthenium is in metallic form or in a form that is readily reducible to the metallic form at temperatures of 25° C. to 150° C. The anode structure is particularly of use in proton exchange membrane fuel cell to prevent poisoning of the electrocatalyst by impurities in the fuel stream to the anode.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: February 13, 2007
    Assignee: Johnson Matthey Public Limited Company
    Inventors: Sarah Ball, David Thompsett
  • Publication number: 20040045819
    Abstract: An anode structure comprising a ruthenium catalyst is disclosed. The catalyst consists essentially of ruthenium deposited on a conducting support wherein the ruthenium is in metallic form or in a form that is readily reducible to the metallic form at temperatures of 25° C. to 150° C. The anode structure is particularly of use in proton exchange membrane fuel cell to prevent poisoning of the electrocatalyst by impurities in the fuel stream to the anode.
    Type: Application
    Filed: March 18, 2003
    Publication date: March 11, 2004
    Inventors: Sarah Ball, David Thompsett