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Last Updated: October 23, 2020

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Details for Patent: 6,846,413

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Summary for Patent: 6,846,413
Title: Microstructured filter
Abstract:A microstructured filter for a fluid, the filter having an inlet for unfiltered fluid and an outlet for filtered fluid, the filter comprising: a plurality of projections (7) which are arranged in at least two rows (3) in mutually juxtaposed relationship and which project out of a base plate (1) and which are an integral component of the base plate, a plurality of passages (8) between the projections (7), and a cover plate which is securable to the base plate to cover the projections (7) and the passages (8), wherein the passages form a plurality of through paths from the inlet to the outlet, said inlet comprises an elongate inlet slot (5) for the unfiltered fluid, which extends over approximately the entire filter width and which is approximately as high as the projection (7) projecting out of the base plate, on the outlet side of the filter. The filter according to the invention remains operational, even if a part of the filter area is obstructed. The filter is used for example in an atomizer with which an aerosol is produced from a fluid which contains a medicament.
Inventor(s): Kadel; Klaus (Willen, DE), Geser; Johannes (Dortmund, DE), Eicher; Joachin (Dortmund, DE), Freund; Bernhard (Gau-Algesheim, DE), Dunne; Stephen Terence (Woodbridge, DE), Bachtler; Wulf (Mainz, DE)
Assignee: Boehringer Ingelheim International GmbH (DE)
Application Number:09/509,201
Patent Claim Types:
see list of patent claims

Drugs Protected by US Patent 6,846,413

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: 6,846,413

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany197 42 439Sep 26, 1997
PCT Information
PCT FiledAugust 28, 1998PCT Application Number:PCT/GB98/02604
PCT Publication Date:April 08, 1999PCT Publication Number: WO99/16530

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Serving leading biopharmaceutical companies globally:

Express Scripts
Boehringer Ingelheim

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