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Serving leading biopharmaceutical companies globally:

Johnson and Johnson
Express Scripts
Queensland Health
Fish and Richardson
US Department of Justice

Generated: October 23, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,679,717

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Summary for Patent: 5,679,717

Title: Method for removing bile salts from a patient with alkylated amine polymers
Abstract:A method for removing bile salts from a patient that includes administering to the patient a therapeutically effective amount of product produced by a process comprising alkylating one or more crosslinked amine polymers, salts or copolymers thereof with at least one alkylating agent. The reaction product is characterized in that: (i) at least some of the nitrogen atoms are unreacted with alkylating agent; and (ii) less than 10 mol% of the nitrogen atoms in the polymer react with the alkylating agent to form quaternary ammonium units.
Inventor(s): Mandeville, III; W. Harry (Lynnfield, MA), Holmes-Farley; Stephen Randall (Arlington, MA)
Assignee: GelTex Pharmaceuticals, Inc. (Waltham, MA)
Application Number:08/460,980
Patent Claim Types:
see list of patent claims
Use; Process; Compound;

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International Patent Family for Patent: 5,679,717

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Israel142419► Subscribe
Israel114073► Subscribe
JapanH09500368► Subscribe
Japan3931217► Subscribe
Israel122383► Subscribe
Hong Kong1001611► Subscribe
Spain2164152► Subscribe
Greece3031702► Subscribe
Spain2135743► Subscribe
European Patent Office0909768► 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:

Federal Trade Commission
Chinese Patent Office
Queensland Health
Fish and Richardson
Harvard Business School
Cantor Fitzgerald

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