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Serving hundreds of leading biopharmaceutical companies globally:

Citi
Mallinckrodt
Cantor Fitzgerald
US Department of Justice
Baxter
Fish and Richardson
Farmers Insurance
AstraZeneca
Colorcon

Generated: June 21, 2018

DrugPatentWatch Database Preview

Details for Patent: 5,631,021

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Summary for Patent: 5,631,021
Title: Method for producing microcapsule
Abstract:A microcapsule produced by preparing a water-in-oil emulsion comprising an inner aqueous layer containing said water-soluble drug and a drug retaining substance therefor and an oil layer containing a polymer substance, then thickening or solidifying said inner aqueous layer to a viscosity of not lower than about 5000 centiposes and finally subjecting the resulting emulsion to in water drying gives prolonged release of water-soluble drug.
Inventor(s): Okada; Hiroaki (Osaka, JP), Ogawa; Yasuaki (Osaka, JP), Yashiki; Takatsuka (Hyogo, JP)
Assignee: Takeda Chemical Industries, Ltd. (Osaka, JP)
Application Number:08/604,022
Patent Claim Types:
see list of patent claims
Composition; Compound; Dosage form;

Drugs Protected by US Patent 5,631,021

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: 5,631,021

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan58-207760Nov 04, 1983

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Serving hundreds of leading biopharmaceutical companies globally:

Baxter
AstraZeneca
Johnson and Johnson
QuintilesIMS
Cipla
Citi
Fish and Richardson
Moodys
McKinsey

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