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Serving leading biopharmaceutical companies globally:

US Army
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Generated: November 17, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,179,189

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Summary for Patent: 5,179,189

Title: Fatty acid terminated polyanhydrides
Abstract:Fatty acid terminated polyanhydrides suitable for use as controlled release matrices in biodegradable sustained release drug delivery systems and methods for making thereof are described. The polymers are more soluble in organic solvents, and have a lower melting point than the corresponding non-fatty acid terminated polyanhydrides. The fatty acid terminated polyanhydrides are also more hydrophobic than the corresponding polyanhydrides that are not terminated with a fatty acid, and combine the properties of thermodynamic and hydrolytic stability, and easy storage. The polymers can be produced with a controlled and low molecular weight. The polyanhydrides are useful in a number of applications, including as a matrix in biodegradable drug delivery systems.
Inventor(s): Domb; Abraham J. (Baltimore, MD), Maniar; Manoj (Baltimore, MD)
Assignee: Nova Pharmaceutical Corporation (Baltimore, MD)
Application Number:07/756,483
Patent Claim Types:
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International Patent Family for Patent: 5,179,189

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada2073561► Subscribe
Canada2083161► Subscribe
Canada2118584► Subscribe
Germany69132138► Subscribe
European Patent Office0511292► Subscribe
European Patent Office0532638► Subscribe
European Patent Office0605536► Subscribe
Ireland910100► Subscribe
Finland941087► Subscribe
Australia7225791► 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:

Argus Health
Queensland Health
Chinese Patent Office

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