Patents Examined by Clinton Troy Ostrup
  • Aerosol composition
    Patent number: 6737044
    Abstract: An aerosol composition comprising a propellant and a first particulate material comprising particle having a median aerodynamic diameter within the range 0.05 to 11 &mgr;m, such as a medicament suitable for pulmonary inhalation, and a second particulate material comprising particles having a median volume diameter within the range 15 to 200 &mgr;m. The presence of the second particulate material provides good suspension properties, particularly where the propellant is a hydrofluoro alkane.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: May 18, 2004
    Assignees: University College Cardiff Consultants Limited, Cardiff Scintigraphics Limited
    Inventors: Paul Alfred Dickinson, Simon John Warren