Patents by Inventor James Noel Martin Hegarty

James Noel Martin Hegarty 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).

  • Synthesis of heteropolyacids
    Patent number: 6497849
    Abstract: This invention relates to a process for purifying a heteropolyacid which comprises: subjecting an aqueous solution comprising (i) the heteropolyacid and (ii) salt impurities to at least one liquid/liquid extraction step with an organic solvent, characterized in that the organic solvent comprises a dihydrocarbyl ether having at least 5 carbon atoms.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: December 24, 2002
    Assignee: BP Chemicals Limited
    Inventors: Martin Philip Atkins, Benjamin Patrick Gracey, James Noel Martin Hegarty, Mark Royston Smith
  • Synthesis of heteropolyacids
    Publication number: 20020054847
    Abstract: This invention relates to a process for purifying a heteropolyacid which comprises: subjecting an aqueous solution comprising (i) the heteropolyacid and (ii) salt impurities to at least one liquid/liquid extraction step with an organic solvent, characterized in that the organic solvent comprises a dihydrocarbyl ether having at least 5 carbon atoms.
    Type: Application
    Filed: June 5, 2001
    Publication date: May 9, 2002
    Inventors: Martin Philip Atkins, Benjamin Patrick Gracey, James Noel Martin Hegarty, Mark Royston Smith