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Generated: August 18, 2017

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Summary for Patent: ► Subscribe

Title: Needleless syringe using super sonic gas flow for particle delivery
Abstract:A needleless syringe having a membrane (28) which is ruptured by gas pressure to generate a supersonic gas flow in which particles containing a therapeutic agent are injected.
Inventor(s): Bellhouse; Brian J. (Islip, GB), Sarphie; David F. (Oxford, GB), Greenford; John C. (Abingdon, GB)
Assignee: PowderJect Research Limited (Oxford, GB)
Application Number:09/248,743
Patent Claim Types:
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Dosage form; Delivery;

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Foreign Priority and PCT Information for Patent: ► Subscribe

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9307459Apr 08, 1993
United Kingdom9318407Sep 06, 1993
United Kingdom9321356Oct 15, 1993
United Kingdom9326069Dec 21, 1993

International Patent Family for Patent: ► Subscribe

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany69434760► Subscribe
Denmark0734737► Subscribe
European Patent Office0693119► Subscribe
Denmark0693119► Subscribe
European Patent Office0734737► 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 500+ biopharmaceutical companies globally:

Johnson and Johnson
Healthtrust
Daiichi Sankyo
QuintilesIMS
Fish and Richardson
Chinese Patent Office
Cipla
Colorcon
Novartis
Accenture

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