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Serving leading biopharmaceutical companies globally:

Harvard Business School
Federal Trade Commission
US Department of Justice
Johnson and Johnson
Argus Health

Generated: December 11, 2017

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Details for Patent: RE34990

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Summary for Patent: RE34990

Title: Oral therapeutic system having systemic action
Abstract:The invention relates to a therapeutic system for peroral administration and having systemic action, which system is in the form of a coated and/or laminated mono-compartment system for administering carbamazepine. The therapeutic system comprises (a) a wall made of a material which is permeable to water and impermeable to the components of the drug-containing core, (b) a core containing finely particulate carbamazepine as drug and, as auxiliaries, a protective colloid that inhibits the crystal growth of carbamazepine in the presence of water, a swellable hydrophilic polymer and, optionally, a water-soluble compound for inducing osmosis and/or further pharmaceutically acceptable excipients, and (c) a passageway through the wall (a) for delivering the core components to the environmental body fluid. The therapeutic system can be used as an anticonvulsive for the treatment of convulsive states, especially epileptic states.
Inventor(s): Khanna; Satish C. (Bottmingen, CH), Ruttimann; Theresa (Basel, CH)
Assignee: Ciba-Geigy Corporation (Ardsley, NY)
Application Number:08/133,814
Patent Claim Types:
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Compound; Delivery;

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International Patent Family for Patent: RE34990

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria397344► Subscribe
AustriaA199387► Subscribe
Australia597403► Subscribe
Australia7661787► Subscribe
Belgium1000235► Subscribe
Canada1302267► Subscribe
Switzerland668187► Subscribe
German Democratic Republic285718► Subscribe
Germany3725824► Subscribe
Denmark175497► 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:

Farmers Insurance
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Johnson and Johnson

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