Patents by Inventor Patricia Kwong Phieu Burnell

Patricia Kwong Phieu Burnell 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).

  • Aerosol formulation containing a particulate medicament
    Patent number: 6306368
    Abstract: Aerosol formulations comprising: (A) A medicament in particulate form and having a surface coating of a surfactant; (B) A hydrogen-containing fluorocarbon or chlorofluorocarbon propellant; and (C) A cosolvent having higher polarity than the propellant which cosolvent is present in an amount of up to 5% w/w based upon propellant; and methods for their preparation.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: October 23, 2001
    Assignee: Glaxo Group Limited
    Inventors: Anthony James Taylor, Patricia Kwong Phieu Burnell
  • Aerosol formulation containing a particulate medicament
    Patent number: 5919435
    Abstract: The present application relates to aerosol formulations comprising (1) a medicament in particulate form and having a surface coating of a surfactant, (2) a hydrogen-containing fluorocarbon or chlorofluorocarbon propellant, and (3) a co-solvent having higher polarity than the propellant, which cosolvent is present in an amount of up to 5% w/w based upon propellant. The invention also relates to methods for preparation of these aerosol formulations.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: July 6, 1999
    Assignee: Glaxo Group Limited
    Inventors: Anthony James Taylor, Patricia Kwong Phieu Burnell