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Serving leading biopharmaceutical companies globally:

Chinese Patent Office
Fish and Richardson
Express Scripts
US Army

Generated: November 20, 2017

DrugPatentWatch Database Preview

Details for Patent: 5,624,963

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Summary for Patent: 5,624,963

Title: Process for removing bile salts from a patient and compositions therefor
Abstract:A method for removing bile salts from a patient by ion exchange by administering to the patient a therapeutically effective amount of one or more highly crosslinked polymers characterized by a repeat unit having the formula ##STR1## or copolymer thereof, where n is an integer; R.sup.1 is H or a C.sub.1 -C.sub.8 alkyl group; M is ##STR2## or --Z--R.sup.2 ; Z is O, NR.sup.3, S, or (CH.sub.2).sub.m ; m=0-10; R.sup.3 is H or a C.sub.1 -C.sub.8 alkyl group; and R.sup.2 is ##STR3## where p=0-10, and each R.sup.4, R.sup.5, and R.sup.6, independently, is H, a C.sub.1 -C.sub.8 alkyl group, or an aryl group, the polymers being non-toxic and stable once ingested.
Inventor(s): Mandeville, III; W. Harry (Lynnfield, MA), Holmes-Farley; Stephen R. (Arlington, MA)
Assignee: GelTex Pharmaceuticals, Inc. (Waltham, MA)
Application Number:08/258,477
Patent Claim Types:
see list of patent claims
Use; Compound; Composition;

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International Patent Family for Patent: 5,624,963

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Israel114073► Subscribe
Hong Kong1001611► Subscribe
Greece3031702► Subscribe
JapanH09500368► Subscribe
JapanH10501842► Subscribe
JapanH11507093► Subscribe
Japan3931217► Subscribe
Israel142419► Subscribe
Israel122383► Subscribe
China1136855► 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:

Boehringer Ingelheim
Express Scripts
Chinese Patent Office

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