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Serving leading biopharmaceutical companies globally:

US Department of Justice
Chinese Patent Office
Daiichi Sankyo

Generated: November 18, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,948,805

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Summary for Patent: 4,948,805

Title: Salt of diclofenac with a pyrrolidine compound and pharmaceutical compositions which contain it
Abstract:The salt of diclofenac with a cyclic organic base is prepared by dissolving diclofenac in a suitable organic solvent, adding said cyclic organic base, reacting the two components together, removing the solvent and crystallizing the product obtained. Said salt is water soluble to an extent from 20% w/v to an extent exceeding 50% w/v, and is used to prepared pharmaceutical compositions preferably in granular form for use by dissolving in water for oral administration.
Inventor(s): Ziggiotti; Antonio (Vezia, CH), Di Schiena; Michele (Cisliano, IT)
Assignee: Altergon S. A. & Ricerfarma Srl. (IT)
Application Number:07/117,823
Patent Claim Types:
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Compound; Composition;

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Foreign Priority and PCT Information for Patent: 4,948,805

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Italy22320 A/86Nov 13, 1986

International Patent Family for Patent: 4,948,805

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria63304► Subscribe
Australia8117587► Subscribe
Canada1303050► Subscribe
Germany3769943► Subscribe
Denmark592987► Subscribe
European Patent Office0271709► Subscribe
Spain2029254► Subscribe
Finland875023► Subscribe
Greece3002386► Subscribe
Ireland873006► 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 leading biopharmaceutical companies globally:

Express Scripts
Harvard Business School
Boehringer Ingelheim

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