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Serving leading biopharmaceutical companies globally:

Express Scripts
Deloitte
Baxter
Boehringer Ingelheim
McKinsey
Merck
Federal Trade Commission
AstraZeneca
Cipla
Queensland Health

Generated: February 22, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,662,271

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Summary for Patent: 5,662,271
Title: Atomizing devices and methods
Abstract:A metered dose inhaler comprises a piston which is mounted in a cavity within a body, and is urged by a pre-loaded spring into a reduced cross-section pressure chamber. The piston may be loaded by means of an actuating rod having a handle, and may be latched in a loaded position by a latching means. A liquid drug (e.g. in aqueous solution) is contained in a collapsible bag. Metered quantities of the drug are successively presented in the pressure chamber, and then subjected to a sudden and great increase in pressure, to eject the liquid drug through an atomising head, to reduce it to fine atomised spray of small mean particle size--for example less than 30 micrometers. Non-return valves control the flow of liquid through the device. The sudden pressure pulse is caused be releasing the spring loaded piston, upon depressing an actuating button connected by the latching means.
Inventor(s): Weston; Terence Edward (Woodbridge, GB2), Dunne; Stephen Terence (Ipswich, GB2)
Assignee: Boehringer Ingelheim International GmbH (DE)
Application Number:08/459,458
Patent Claim Types:
see list of patent claims
Device; Delivery; Use;

Drugs Protected by US Patent 5,662,271

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

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Foreign Priority and PCT Information for Patent: 5,662,271

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9006340Mar 21, 1990
United Kingdom9023767Nov 01, 1990

International Patents Family Members for US Patent 5,662,271

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
China 1199009 ➤ Try a Free Trial
China 1119182 ➤ Try a Free Trial
Czech Republic 283820 ➤ Try a Free Trial
Germany 69128419 ➤ Try a Free Trial
Germany 69131966 ➤ Try a Free Trial
Denmark 0521061 ➤ Try a Free Trial
Denmark 0627230 ➤ Try a Free Trial
European Patent Office 0521061 ➤ Try a Free Trial
European Patent Office 0627230 ➤ Try a Free Trial
Spain 2109943 ➤ Try a Free Trial
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Mallinckrodt
Boehringer Ingelheim
Covington
Fish and Richardson
Queensland Health
Baxter
Chinese Patent Office
Chubb
AstraZeneca

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