Patents Assigned to Controlled Release Technologies Pty Ltd
  • Controlled release device and method
    Patent number: 5980508
    Abstract: A device for dispensing one or more active agents, the device including: a housing (112) having an opening; at least one active agent (118) located within the housing; a driving means (124) located within, or at the closed end of the housing, including an expandable material; and one or more permeable fluid conveying passage(s) adapted to convey fluid from outside the housing to the driving means.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: November 9, 1999
    Assignee: Controlled Release Technologies Pty Ltd
    Inventors: Michael Cardamone, Herbert William Bentley