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Serving hundreds of leading biopharmaceutical companies globally:

Julphar
Colorcon
Fuji
US Army
Argus Health
Citi
Express Scripts
Fish and Richardson
Mallinckrodt

Generated: May 27, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,657,900

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Summary for Patent: 4,657,900
Title: Pharmaceutical article of manufacture comprising a bisulfite stabilized aqueous solution of 5-aminosalicylic acid and method
Abstract:An aqueous suspension of pure 5-aminosalicylic acid adapted for rectal administration is rendered storage stable against color formation by storing the suspension in a single dose polyethylene bottle adapted for rectal administration of the suspension, in a substantially oxygen-free atmosphere and in the presence dissolved therein of up to about 0.25% of bisulfite and protecting the suspension from exposure to atmospheric oxygen during storage by sealing the plastic bottle, in a substantially oxygen-free atmosphere, in a plastic pouch having a low oxygen transmission rate.
Inventor(s): Powell; David R. (Baudette, MN), Patel; Vithal K. (Baudette, MN)
Assignee: Rowell Laboratories (Baudette, MN)
Application Number:06/717,062
Patent Claim Types:
see list of patent claims
Formulation; Use; Composition;

Drugs Protected by US Patent 4,657,900

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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International Family Members for US Patent 4,657,900

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Germany 3773657 ➤ Try a Free Trial
European Patent Office 0279093 ➤ Try a Free Trial
Spain 2026179 ➤ Try a Free Trial
Israel 81799 ➤ 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:

Farmers Insurance
Boehringer Ingelheim
Cerilliant
Federal Trade Commission
Teva
Julphar
Merck
Cipla
Colorcon

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