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Generated: December 18, 2017

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Details for Patent: 4,818,816

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Summary for Patent: 4,818,816

Title: Process for the organic synthesis of oligosaccharides and derivatives thereof
Abstract:The invention relates to a process for the organic synthesis of oligosaccharides constituting or comprising fragments of acid mucopolysaccharides comprising the reaction of two compounds constituted or terminated by units of glucosamine structure and of uronic acid structure respectively, said units being specifically substituted. This process particularly enables valuable anticoagulant drugs to be obtained.
Inventor(s): Petitou; Maurice (Paris, FR), Jacquinet; Jean-Claude (Orleans la Source, FR), Sinay; Pierre (Orleans la Source, FR), Choay; Jean (Paris, FR), Lormeau; Jean-Claude (Maromme, FR), Nassr; Mahmoud (Alexandria, EG)
Assignee: Choay, S.A. (Paris, FR)
Application Number:07/115,593
Patent Claim Types:
see list of patent claims
Process; Use; Compound; Composition;

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Foreign Priority and PCT Information for Patent: 4,818,816

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
France81 08472Apr 28, 1981
France82 00621Jan 15, 1982
France82 01675Feb 01, 1982
France82 02526Feb 16, 1982
France82 09392May 28, 1982
France82 10892Jun 22, 1982
France82 10891Jun 22, 1982
France82 11679Jul 02, 1982
France82 13804Aug 06, 1982
France82 15803Sep 20, 1982

International Patent Family for Patent: 4,818,816

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria20894► Subscribe
Austria33496► Subscribe
Austria40555► Subscribe
Austria42956► Subscribe
Austria85341► Subscribe
Australia1039783► Subscribe
Australia2128583► Subscribe
Australia4263785► Subscribe
Australia558472► Subscribe
Australia563351► 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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