Details for Patent: 4,364,923
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Summary for Patent: 4,364,923
| Title: | Chemical compounds |
| 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 micronised 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 & Hanburs Limited (London, GB2) |
| Application Number: | 06/259,015 |
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Patent Claim Types: see list of patent claims | Formulation; Compound; Device; |
Drugs Protected by US Patent 4,364,923
| 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: 4,364,923
| Foriegn Application Priority Data | ||
| Foreign Country | Foreign Patent Number | Foreign Patent Date |
| United Kingdom | 18421/72 | Apr 20, 1972 |
International Family Members for US Patent 4,364,923
| Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
|---|---|---|---|---|---|
| Argentina | 196524 | ⤷ Try a Trial | |||
| Austria | 348115 | ⤷ Try a Trial | |||
| Austria | 352973 | ⤷ Try a Trial | |||
| Austria | A302275 | ⤷ Try a Trial | |||
| Austria | A352973 | ⤷ Try a Trial | |||
| Australia | 471577 | ⤷ Try a Trial | |||
| Australia | 5466073 | ⤷ Try a Trial | |||
| >Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |
