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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:
see list of patent claims
Composition;
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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 Publication Date Supplementary Protection Certificate SPC Country SPC Expiration
New Zealand246047Mar 24, 1997
Germany4140689Jun 17, 1993
Canada2125685Nov 08, 2005
Austria164060Apr 15, 1998
Germany4140689Nov 22, 2007
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Preferred citation:

Friedman, Y. Location of pharmaceutical innovation: 2000–2009 Nature Reviews Drug Discovery 9, 835–836 (2010).

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