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Serving leading biopharmaceutical companies globally:

Cantor Fitzgerald
Fish and Richardson
US Department of Justice
Farmers Insurance

Generated: November 18, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,371,516

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Summary for Patent: 4,371,516

Title: Articles for carrying chemicals
Abstract:The invention relates to shaped articles carrying chemicals, particular to pharmaceutical dosage forms carrying pharmaceuticals, which disintegrate rapidly in water. The shaped articles comprise an open matrix network of carrier material carrying the chemical. The articles may be prepared by subliming solvent from a composition comprising the chemical and a solution of the carrier material in a solvent, the composition being in the solid state in a mould.
Inventor(s): Gregory; George K. E. (Marlow, GB2), Peach; James M. (High Wycombe, GB2), Du Mayne; James D. (Maidenhead, GB2)
Assignee: John Wyeth & Brother Limited (Maidenhead, GB2)
Application Number:06/284,025
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form; Process; Use;

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Foreign Priority and PCT Information for Patent: 4,371,516

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom41483/77Oct 06, 1976

International Patent Family for Patent: 4,371,516

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Ireland45770► Subscribe
Hong Kong58081► Subscribe
United Kingdom1548022► Subscribe
France2366835► Subscribe
Germany2744493► Subscribe
Cyprus1129► Subscribe
Switzerland633717► Subscribe
Canada1097233► Subscribe
Canada1083042► Subscribe
Australia2882577► 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:

Chinese Patent Office

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