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Serving 500+ biopharmaceutical companies globally:

Boehringer Ingelheim
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Generated: July 21, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,711,880

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Summary for Patent: 4,711,880

Title: Crystalline disodium 3-amino-1-hydroxypropane-1,1-diphosphonate pentahydrate
Abstract:The invention relates to a novel crystal modification, containing water of crystallization, of disodium 3-amino-1-hydroxypropane-1,1-diphosphonate of the formula ##STR1## and to a process for the manufacture thereof. This modification is suitable for the oral treatment of disorders of the calcium and phosphate metabolism and associated diseases in warm-blooded animals.
Inventor(s): Stahl; Peter H. (Freiburg, DE), Schmitz; Beat (Allschwil, CH)
Assignee: Ciba-Geigy Corporation (Ardsley, NY) Henkel Kommanditgesellschaft auf Aktien (Dusseldorf-Holthausen, DE)
Application Number:06/905,097
Patent Claim Types:
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Compound; Formulation;

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Foreign Priority and PCT Information for Patent: 4,711,880

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Switzerland3768/84Aug 06, 1984

International Patent Family for Patent: 4,711,880

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina240832► Subscribe
Argentina244696► Subscribe
Argentina244697► Subscribe
Argentina244698► Subscribe
Austria47396► 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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Serving 500+ biopharmaceutical companies globally:

Cantor Fitzgerald
Johnson and Johnson
Federal Trade Commission
Express Scripts
US Army

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