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Serving hundreds of leading biopharmaceutical companies globally:

Argus Health
Colorcon
Citi
UBS
Fish and Richardson
Covington
QuintilesIMS
Accenture
Julphar

Generated: April 21, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,541,170

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Summary for Patent: 5,541,170
Title: Orally administrable pharmaceutical compositions
Abstract:A solid dosage form, such as a capsule or tablet, containing a pharmacologically active agent is coated with an anionic polymer, which is insoluble in gastric juice and in intestinal juice below pH7 but soluble in colonic intestinal juice, in a sufficient amount that the oral dosage form remains intact until it reaches the colon. The preferred anionic polymer is a partly methyl esterified methacrylic acid polymer in which the ratio of free carboxylic groups to ester groups is about 1:2. The invention has particular application to dosage forms of prednisolone and salts thereof, indomethacin, ibuprofen, and, especially, 5-amino-salicylic acid.
Inventor(s): Rhodes; John (Cardiff, GB7), Evans; Brian K. (Dinas Powis, GB7)
Assignee: Tillotts Pharma AG (Ziefen, CH)
Application Number:08/401,696
Patent Claim Types:
see list of patent claims
Use; Composition; Compound; Dosage form;

Drugs Protected by US Patent 5,541,170

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Foreign Priority and PCT Information for Patent: 5,541,170

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8123573Jul 31, 1981

International Patents Family Members for US Patent 5,541,170

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 17189 ➤ Try a Free Trial
Australia 551173 ➤ Try a Free Trial
Australia 8732482 ➤ Try a Free Trial
Canada 1172570 ➤ Try a Free Trial
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Baxter
Deloitte
Johnson and Johnson
Farmers Insurance
Argus Health
Cerilliant
Colorcon
Fish and Richardson
Teva

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