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Serving leading biopharmaceutical companies globally:

Federal Trade Commission
Express Scripts
Johnson and Johnson
Queensland Health
Cantor Fitzgerald
Daiichi Sankyo

Generated: December 13, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,524,769

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Summary for Patent: 4,524,769

Title: Dosage inhalator
Abstract:A powder inhalator which is activated by the air flow generated at inhalation and which is intended for inhalation of solid pharmacologically active compound in micronized form, said inhalator comprising a nozzle 2, an air conduit 6, a dosing unit 10 comprising a storage chamber 5 for the active compound and dosing means 8, and a maneuvering unit 1, characterized in that the dosing unit 10 comprises a storage chamber 5 for the active compound, a perforated membrane 4, a holder 9 for the said perforated membrane, and dosing means 8 for introducing active compound into the perforations in the perforated membrane 4, whereby means are arranged for displacing the membrane 4 in relation to the dosing means 8, whereby in a first position solid active compound in micronized form is introduced into the perforations in part of the area of the membrane 4 and in a second position the said part of the membrane 4 is inserted in the air conduit 6 for the air to be inhaled.
Inventor(s): Wetterlin; Kjell I. L. (S Sandby, SE)
Assignee: Aktiebolaget Draco (Lund, SE)
Application Number:06/389,213
Patent Claim Types:
see list of patent claims
Compound; Delivery;

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Foreign Priority and PCT Information for Patent: 4,524,769

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Sweden8104239Jul 08, 1981

International Patent Family for Patent: 4,524,769

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria23272► Subscribe
Australia559297► Subscribe
Australia8560882► Subscribe
Canada1178151► Subscribe
Cyprus1492► Subscribe
Germany3274065► Subscribe
Denmark159052► Subscribe
Denmark304482► Subscribe
Egypt16516► Subscribe
European Patent Office0069715► 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 leading biopharmaceutical companies globally:

Boehringer Ingelheim
US Department of Justice
Chinese Patent Office
Queensland Health

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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