Last Updated: September 24, 2026

Details for Patent: 5,478,578

Name: Drug Patent Intelligence for US Patent 5478578
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Summary for Patent: 5,478,578

Title:	Powders for inhalation
Abstract:	PCT No. PCT/EP92/02814 Sec. 371 Date Aug. 15, 1994 Sec. 102(e) Date Aug. 15, 1994 PCT Filed Dec. 12, 1992 PCT Pub. No. WO93/11746 PCT Pub. Date Jun. 24, 1993.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):	Klaus Arnold, Peter Grass, Adolf Knecht, Robert Roos, Gerhard Sluke, Herbet Thieme, Joachim Wenzel
Assignee:	Boehringer Ingelheim GmbH
Application Number:	US08/244,737
Patent Claim Types: see list of patent claims	Composition; Compound;

Drugs Protected by US Patent 5,478,578

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Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Patented / Exclusive Use	Submissiondate
>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Patented / Exclusive Use	>Submissiondate

Foreign Priority and PCT Information for Patent: 5,478,578

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
Germany	41 40 689.3	Dec 10, 1991

PCT Information
PCT Filed	December 12, 1992	PCT Application Number:	PCT/EP92/02814
PCT Publication Date:	June 24, 1993	PCT Publication Number:	WO93/11746

International Family Members for US Patent 5,478,578

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	164060	⤷ Start Trial
Australia	3085492	⤷ Start Trial
Australia	670555	⤷ Start Trial
Canada	2125685	⤷ Start Trial
Germany	4140689	⤷ Start Trial
Germany	59209244	⤷ Start Trial
Denmark	0663815	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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