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Last Updated: January 22, 2021

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Details for Patent: 5,035,899

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Summary for Patent: 5,035,899
Title: Peroral preparation of acid-unstable compound
Abstract:A peroral preparation of an acid-unstable compound comprises (1) a core containing the acid-unstable compound, (2) a first layer, coated on the core, comprising a hardly water-soluble, film-forming material and fine particles of a hardly water-soluble substance, suspended in the material, and (3) a second layer, coated on the first layer, of enteric film. The acid-unstable compound is a benzimidazole compound.
Inventor(s): Saeki; Yasuharu (Tsukuba, JP), Koyama; Noritoshi (Ibaraki, JP), Watanabe; Sumio (Aichi, JP), Aoki; Shigeru (Gifu, JP)
Assignee: Eisai Co., Ltd. (Tokyo, JP)
Application Number:07/332,731
Patent Claim Types:
see list of patent claims
Compound; Dosage form;

Drugs Protected by US Patent 5,035,899

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

Foreign Priority and PCT Information for Patent: 5,035,899

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan63-121233May 18, 1988

International Family Members for US Patent 5,035,899

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 70442   Start Trial
Canada 1336958   Start Trial
German Democratic Republic 283771   Start Trial
Germany 68900566   Start Trial
Denmark 174664   Start Trial
Denmark 239189   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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