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Serving leading biopharmaceutical companies globally:

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Generated: November 17, 2017

DrugPatentWatch Database Preview

Details for Patent: 6,641,800

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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; Device; Process;

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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 Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria132739► Subscribe
Australia2647192► Subscribe
Australia654397► Subscribe
Bulgaria61752► Subscribe
Bulgaria98681► Subscribe
Brazil1100446► Subscribe
Brazil9206549► Subscribe
Canada2119932► Subscribe
China1050285► Subscribe
China1071832► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Serving leading biopharmaceutical companies globally:

McKesson
Baxter
Chinese Patent Office
Moodys
Fuji
UBS
Teva
Daiichi Sankyo
Julphar
Novartis

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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