Last Updated: November 9, 2026

Details for Patent: 8,841,446

Name: Drug Patent Intelligence for US Patent 8841446
Creator: DrugPatentWatch
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Summary for Patent: 8,841,446

Title:	Medicaments containing vardenafil hydrochloride trihydrate
Abstract:	The invention relates to a method for producing medicaments that contain vardenafil hydrochloride, essentially as trihydrate in solid form, and to medicaments that can be obtained according to this method.
Inventor(s):	Peter Serno, Alfons Grunenberg, Andreas Ohm, Rainer Bellinghausen, Elmer Vollers, Jan-Olav Henck
Assignee:	Bayer Intellectual Property GmbH
Application Number:	US13/625,481
Patent Claim Types: see list of patent claims	Composition; Compound; Dosage form;

Drugs Protected by US Patent 8,841,446

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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

International Family Members for US Patent 8,841,446

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	538777	⤷ Start Trial
Australia	2003249942	⤷ Start Trial
Brazil	0305559	⤷ Start Trial
Brazil	PI0305559	⤷ Start Trial
Canada	2492747	⤷ Start Trial
Canada	2805600	⤷ Start Trial
China	102210689	⤷ Start Trial
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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