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Serving hundreds of leading biopharmaceutical companies globally:

Fish and Richardson
Harvard Business School
Chubb
Healthtrust
Cipla
Johnson and Johnson
Dow
Daiichi Sankyo
Colorcon

Generated: May 26, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,497,944

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Summary for Patent: 5,497,944
Title: Atomising devices and methods
Abstract:A metered dose inhaler for dispensing a fluid medicament as droplets of small mean particle size without the use of pressurized gas or liquefied propellants. A liquid drug is contained in a fluid reservoir, and metered quantities of the drug are successively presented into a reduced cross-section pressure chamber, with non-return valves controlling the flow of liquid through the device. The metered quantity of the drug is then subjected to a sudden and great increase in pressure by releasing a piston into the pressure chamber. The liquid drug is thereby ejected through an atomizing head, to reduce it to a fine atomized spray of small mean particle size, preferably less than approximately 12 micrometers.
Inventor(s): Weston; Terence E. (Woodbridge, GB2), Dunne; Stephen T. (Shotley, GB2)
Assignee: DMW (Technology) Limited (GB)
Application Number:07/938,174
Patent Claim Types:
see list of patent claims
Device; Use; Delivery;

Drugs Protected by US Patent 5,497,944

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: 5,497,944

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9006340Mar 21, 1990
United Kingdom9023767Nov 01, 1990
PCT Information
PCT FiledMarch 21, 1991PCT Application Number:PCT/GB91/00433
PCT Publication Date:October 03, 1991PCT Publication Number: WO91/14468

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Serving hundreds of leading biopharmaceutical companies globally:

Covington
Boehringer Ingelheim
Healthtrust
Citi
Johnson and Johnson
Accenture
Daiichi Sankyo
Deloitte
McKinsey

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