Patents by Inventor Dharshini Chryshantha Fongalland

Dharshini Chryshantha Fongalland 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).

  • Polymer dispersion and electrocatalyst ink
    Patent number: 9127182
    Abstract: A polymer dispersion comprising one or more proton-conducting polymer materials in a liquid medium, and an electrocatalyst ink comprising one or more electrocatalyst materials and one or more proton-conducting polymer materials in a liquid medium are disclosed. The polymer dispersion and the electrocatalyst ink further comprise a protic acid. Electrocatalyst layers, gas diffusion electrodes, catalyzed membranes and membrane electrode assemblies prepared using the dispersion and/or the ink are also disclosed.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: September 8, 2015
    Assignee: JOHNSON MATTHEY FUEL CELLS LIMITED
    Inventors: Dharshini Chryshantha Fongalland, Pamela Kapila, Chandresh Nemchand Malde, Michael Ian Petch
  • Polymer Dispersion and Electrocatalyst Ink
    Publication number: 20080292943
    Abstract: A polymer dispersion comprising one or more proton-conducting polymer materials in a liquid medium, and an electrocatalyst ink comprising one or more electrocatalyst materials and one or more proton-conducting polymer materials in a liquid medium are disclosed. The polymer dispersion and the electrocatalyst ink further comprise a protic acid. Electrocatalyst layers, gas diffusion electrodes, catalysed membranes and membrane electrode assemblies prepared using the dispersion and/or the ink are also disclosed.
    Type: Application
    Filed: May 16, 2006
    Publication date: November 27, 2008
    Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
    Inventors: Dharshini Chryshantha Fongalland, Pamela Kapila, Chandresh Nemchand Malde, Michael Ian Petch
  • Substrate binder
    Publication number: 20040208993
    Abstract: A process for the preparation of a membrane includes forming a porous substrate and then impregnating the porous substrate with a polymeric material. The porous substrate is made by first dispersing fibres in water to form a slurry, then depositing the slurry onto a mesh bed to form a fibre network, drying and compacting the fibre network, and, either before or after drying and compacting, applying to the fibre network a dispersion of a binder of silica and a fluorinated polymer.
    Type: Application
    Filed: May 10, 2004
    Publication date: October 21, 2004
    Inventors: Dharshini Chryshantha Fongalland, John Malcolm Gascoyne, Thomas Robertson Ralph