Patents by Inventor Hanna Katariina Rajantie

Hanna Katariina Rajantie 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).

  • Fuel cell assembly
    Patent number: 8318373
    Abstract: An MEA comprising: (i) a central first conductive gas diffusion substrate having a first face and a second face; (ii) first and second catalyst layers each having a first and second face and wherein the first face of the first catalyst layer is in contact with the first face of the gas diffusion substrate and the first face of the second catalyst layer is in contact with the second face of the gas diffusion substrate; (iii) first and second electrolyte layers each having a first and second face and wherein the first face of the first electrolyte layer is in contact with the second face of the first catalyst layer and the first face of the second electrolyte layer is in contact with the second face of the second catalyst layer; (iv) third and fourth catalyst layers each having a first and second face and wherein the first face of the third catalyst layer is in contact with the second face of the first electrolyte layer and the first face of the fourth catalyst layer is in contact with the second face of the se
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: November 27, 2012
    Assignee: Johnson Matthey Fuel Cells Limited
    Inventors: Hanna Katariina Rajantie, Jonathan David Brereton Sharman, David Thompsett, David Emmerson Brown, Stephen Robert Tennison, Beverley Sowerby, Vlad Strelko
  • FUEL CELL ASSEMBLY
    Publication number: 20100009232
    Abstract: An MEA comprising: (i) a central first conductive gas diffusion substrate having a first face and a second face; (ii) first and second catalyst layers each having a first and second face and wherein the first face of the first catalyst layer is in contact with the first face of the gas diffusion substrate and the first face of the second catalyst layer is in contact with the second face of the gas diffusion substrate; (iii) first and second electrolyte layers each having a first and second face and wherein the first face of the first electrolyte layer is in contact with the second face of the first catalyst layer and the first face of the second electrolyte layer is in contact with the second face of the second catalyst layer; (iv) third and fourth catalyst layers each having a first and second face and wherein the first face of the third catalyst layer is in contact with the second face of the first electrolyte layer and the first face of the fourth catalyst layer is in contact with the second face of the se
    Type: Application
    Filed: September 11, 2007
    Publication date: January 14, 2010
    Applicants: Johnson Matthey Public Limited Company, MAST Carbon International LTD, C2 Chandler Consulting
    Inventors: Hanna Katariina Rajantie, Jonathan David Brereton Sharman, David Thompsett, David Emmerson Brown, Stephen Robert Tennison, Beverley Sowerby, Vlad Strelko