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Serving leading biopharmaceutical companies globally:

Argus Health
US Army
Harvard Business School
Chinese Patent Office
Johnson and Johnson

Generated: November 20, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,931,288

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Summary for Patent: 4,931,288

Title: Controlled release compositions (II)
Abstract:A controlled release composition comprising a prostaglandin and a polymeric carrier therefor comprising residues having a ratio of number average molecular weight to functionality greater than 1,000 which comprise polyethylene oxide and are cross-linked through urethane groups.
Inventor(s): Embrey; Mostyn (Oxford, GB2), Graham; Neil B. (Dunbartonshire, GB6)
Assignee: Lloyds Bank PLC (GB)
Application Number:07/188,674
Patent Claim Types:
see list of patent claims
Composition; Use;

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Foreign Priority and PCT Information for Patent: 4,931,288

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom7909853Mar 21, 1979

International Patent Family for Patent: 4,931,288

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria14979► Subscribe
Austria15444► Subscribe
Australia537740► Subscribe
Australia537741► Subscribe
Australia5669080► Subscribe
Australia5669180► Subscribe
Germany3071006► Subscribe
Germany3071070► Subscribe
European Patent Office0016652► Subscribe
European Patent Office0016654► 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
Boehringer Ingelheim
US Army

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