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Serving leading biopharmaceutical companies globally:

Boehringer Ingelheim
Queensland Health

Generated: December 18, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,414,209

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Summary for Patent: 4,414,209

Title: Micronized aerosol steroids
Abstract:An antiinflammatory steroid exhibiting a tendency to crystal growth in suspension in aerosol propellants is contacted with a halogenated hydrocarbon to form a crystalline solvate, which, after removal of some or all of the propellant from the crystals, is reduced to a particle size permitting inhalation into the human bronchial system when dispersed as an aerosol, the micronized crystalline solvate not thereafter exhibiting crystal growth in the aerosol propellant. The solvate is a new composition of matter which has been characterized by I.R. spectra and the aerosol formulation prepared therefrom has valuable therapeutic properties, particularly in the treatment of asthma.
Inventor(s): Cook; Peter B. (Standon, GB2), Hunt; John H. (Theydon Bois, GB2)
Assignee: Allen & Hanburys Limited (London, GB2)
Application Number:05/805,910
Patent Claim Types:
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Foreign Priority and PCT Information for Patent: 4,414,209

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom18421/72Apr 20, 1972

International Patent Family for Patent: 4,414,209

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina196524► Subscribe
Austria348115► Subscribe
Austria352973► Subscribe
AustriaA302275► Subscribe
AustriaA352973► Subscribe
Australia471577► Subscribe
Australia5466073► Subscribe
Belgium798458► Subscribe
Canada994753► Subscribe
Germany2320111► 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:

Queensland Health
US Army
Boehringer Ingelheim

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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