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Patent: 6,641,800

Summary for Patent: 6,641,800

Title: Pressurized aerosol compositions comprising powdered medicament dispersed in hydrofluoroalkane
Abstract:Pressurized aerosol composition for administration by inhalation comprising a liquefied hydrofluoroalkane, a powdered medicament dispersed therein, and a suspending agent comprising a polymer soluble in the liquefied hydrofluoroalkane which is selected from polymers including recurring amide containing structural units, copolymers of amide containing units and carboxylic acid ester units, polyvinylacetate and acrylic acid/methacrylic acid ester copolymers.
Inventor(s): Mistry; Suresh N (Birstall, GB), Gibson; Mark (Shepshed, GB)
Assignee: Fisons Ltd. (West Malling, GB)
Application Number:09/616,069
Patent Claim Types:
see list of patent claims
Composition; Process;
Patent PDF download available with subscription

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Foreign Priority and PCT Information for Patent: 6,641,800

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9120396Sep 25, 1991
United Kingdom9120675Sep 28, 1991
United Kingdom9124661Nov 19, 1991
United Kingdom9203212Feb 14, 1992

International Patent Family for Patent: 6,641,800

Country Document Number Publication Date
Austria132739Jan 15, 1996
Australia2647192Apr 27, 1993
Australia654397Nov 03, 1994
Bulgaria61752May 29, 1998
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