Patents by Inventor Anne E Morrison

Anne E Morrison 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).

  • Ion-exchange materials with improved ion conductivity
    Patent number: 6765027
    Abstract: Ion-exchange materials comprising a polymeric backbone and a plurality of pendent styrenic or fluoridated styrenic macromonomers covalently bonded thereto, wherein the plurality of pendent styrenic or fluorinated styrenic macromonomers comprise a uniform number of styrenic or fluoridated styrenic monomer repeat units, and wherein predominantly all of the styrenic or fluoridated styrenic monomer repeat units have at least one charged group. Processes for making such material, as well as products related thereto, are also disclosed. In a representative embodiment, the ion-exchange material is utilized as a proton-exchange membrane (PEM) for use in a PEM fuel cell.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: July 20, 2004
    Assignee: Ballard Power Systems Inc.
    Inventors: Steven Holdcroft, Jianfu Ding, Carmen Chuy, Charles Stone, Anne E Morrison
  • Ion-exchange materials with improved ion conductivity
    Publication number: 20030078308
    Abstract: Ion-exchange materials comprising a polymeric backbone and a plurality of pendent styrenic or fluorinated styrenic macromonomers covalently bonded thereto, wherein the plurality of pendent styrenic or fluorinated styrenic macromonomers comprise a uniform number of styrenic or fluorinated styrenic monomer repeat units, and wherein predominantly all of the styrenic or fluorinated styrenic monomer repeat units have at least one charged group. Processes for making such materials, as well as products related thereto, are also disclosed. In a representative embodiment, the ion-exchange material is utilized as a proton-exchange membrane (PEM) for use in a PEM fuel cell.
    Type: Application
    Filed: May 13, 2002
    Publication date: April 24, 2003
    Applicant: Ballard Power Systems Inc.
    Inventors: Steven Holdcroft, Jianfu Ding, Carmen Chuy, Charles Stone, Anne E. Morrison