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Serving leading biopharmaceutical companies globally:

Harvard Business School
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Generated: December 12, 2017

DrugPatentWatch Database Preview

Details for Patent: 4,853,230

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Summary for Patent: 4,853,230

Title: Pharmaceutical formulations of acid labile substances for oral use
Abstract:Pharmaceutical preparation containing an acid labile compound together with an alkaline reacting compound or an alkaline salt of an acid labile compound optionally together with an alkaline compound as the core material, one or more subcoating layers comprising inert reacting compounds which are soluble or rapidly disintegrating in water, or polymeric, water soluble filmforming compounds, optionally containing pH-buffering alkaline compounds and an enteric coating as well as a process for the preparation thereof and the use in the treatment of gastrointestinal diseases.
Inventor(s): Lovgren; Kurt I. (Molnlycke, SE), Pilbrant; Ake G. (Kungsbacka, SE), Yasumura; Mitsuru (Hyogo, JP), Morigaki; Satoshi (Hyogo, JP), Oda; Minoru (Ohita, JP), Ohishi; Naohiro (Fukuoka, JP)
Assignee: Aktiebolaget Hassle (Molndal, SE)
Application Number:07/040,490
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form; Formulation; Use;

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Foreign Priority and PCT Information for Patent: 4,853,230

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8610573Apr 30, 1986

International Patent Family for Patent: 4,853,230

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Cyprus1860► Subscribe
German Democratic Republic260222► Subscribe
Germany244380► Subscribe
Germany3751851► Subscribe
Germany3783386► Subscribe
Denmark215987► Subscribe
Denmark169987► Subscribe
Algeria1078► Subscribe
Egypt18517► Subscribe
European Patent Office0244380► 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:

Fish and Richardson
Johnson and Johnson
Harvard Business School

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