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Details for Patent: 5,164,377

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Summary for Patent: 5,164,377

Title: Sulphated glycosaminoglycuronan with antithrombotic activity
Abstract:The present invention relates to sulphated glycosamino glycuronan with antithrombotic activity consisting essentially of salts of dermatan sulphate, chondroitin sulphate and heparan sulphate, characterized by a) an average molecular weight between 4000 and 8000 daltons; b) a nitrogen content between 2.4 and 3.0%; c) a sulphur content between 7.5 and 9.5%; d) a sodium content between 9 and 11%; e) a dermatan sulphate content between 5 and 25%; f) a chondroitin sulphate content less than 9%; g) an anti-Xa activity between 11 and 20 .mu./mg; and h) an antithrombin III dependent antithrombin activity of less than 1 .mu./mg.
Inventor(s): Van Dedem; Gijsbert W. K. (Oss, NL), Van Hou Denhoven; Francois E. A. (Heesch, NL), Meuleman; Dirk G. (Oss, NL), Moelker; Huibert C. T. (Megen, NL), Sanders; Adrianus L. M. (Uden, NL)
Assignee: Akzo N.V. (Arnhem, NL)
Application Number:07/592,152
Patent Claim Types:
see list of patent claims
Compound; Formulation; Device; Composition;

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Foreign Priority and PCT Information for Patent: 5,164,377

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
89202494.4Oct 04, 1989

International Patent Family for Patent: 5,164,377

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria98656► subscribe
Australia6323890► subscribe
Australia637143► 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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