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Harvard Business School
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Generated: December 12, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,662,918

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Summary for Patent: 5,662,918

Title: Pharmaceutical agents containing diphosphonic acids and salts thereof
Abstract:The invention concerns pharmaceutical preparations that are stable on storage, which contain at least one diphosphonic acid and/or at least one physiologically acceptable salt of such an acid as the active substance.
Inventor(s): Winter; Gerhard (Dossenheim, DE), Pichler; Bernhard (Ketsch, DE), Woog; Heinrich (Laudenbach, DE), Heller; Werner (Grunstadt, DE)
Assignee: Boehringer Mannheim GmbH (Mannheim, DE)
Application Number:08/387,818
Patent Claim Types:
see list of patent claims
Use; Formulation; Compound; Device;

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Foreign Priority and PCT Information for Patent: 5,662,918

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany42 28 552.6Aug 27, 1992
PCT Information
PCT FiledAugust 19, 1993PCT Application Number:PCT/EP93/02217
PCT Publication Date:March 17, 1994PCT Publication Number: WO94/05297

International Patent Family for Patent: 5,662,918

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria151636► Subscribe
Australia4949993► Subscribe
Canada2141964► Subscribe
Germany4228552► Subscribe
Germany59306211► Subscribe
Denmark0656780► Subscribe
European Patent Office0656780► Subscribe
Spain2103486► Subscribe
Greece3023962► Subscribe
Japan3118258► 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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