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Serving leading biopharmaceutical companies globally:

Harvard Business School
Boehringer Ingelheim
Daiichi Sankyo
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US Army
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Generated: December 14, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,478,578

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Summary for Patent: 5,478,578

Title: Powders for inhalation
Abstract:In order to control and optimize the amount of inhalable active substance released when drugs are administered as inhalation powders, the invention calls for the use of auxiliaries consisting of mixtures of coarser particles (average particle size>20 .mu.m) and finer particles (average particle size<10 .mu.m).
Inventor(s): Arnold; Klaus (Ingelheim am Rhein, DE), Grass; Peter (Ingelheim am Rhein, DE), Knecht; Adolf (Freiburg, DE), Roos; Robert (Ingelheim am Rhein, DE), Sluke; Gerhard (Ingelheim am Rhein, DE), Thieme; Herbet (Ingelheim am Rhein, DE), Wenzel; Joachim (Ingelheim am Rhein, DE)
Assignee: Boehringer Ingelheim KG (Ingelheim am Rhein, DE)
Application Number:08/244,737
Patent Claim Types:
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Foreign Priority and PCT Information for Patent: 5,478,578

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany41 40 689.3Dec 10, 1991
PCT Information
PCT FiledDecember 12, 1992PCT Application Number:PCT/EP92/02814
PCT Publication Date:June 24, 1993PCT Publication Number: WO93/11746

International Patent Family for Patent: 5,478,578

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia670555► Subscribe
Canada2125685► Subscribe
Germany4140689► Subscribe
Germany59209244► Subscribe
Australia3085492► Subscribe
Denmark0663815► Subscribe
Austria164060► Subscribe
European Patent Office0663815► Subscribe
Spain2116353► Subscribe
Greece3026516► 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:

Johnson and Johnson
Express Scripts
Chinese Patent Office
Daiichi Sankyo

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