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Boehringer Ingelheim

Last Updated: February 19, 2020

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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 Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 4,414,209
Patent Claim Types:
see list of patent claims

Drugs Protected by US Patent 4,414,209

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

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 Family Members for US Patent 4,414,209

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 196524   Start Trial
Austria 348115   Start Trial
Austria 352973   Start Trial
Austria A302275   Start Trial
Austria A352973   Start Trial
Australia 471577   Start Trial
Australia 5466073   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

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