Competitive intelligence on
small-molecule drugs and
the 80,000 global patents
covering them

Start your free trial now

No commitment — No credit card required

DrugPatentWatch Ultimate Plan Preview

Details for Patent: 5,480,656

« Back to Dashboard

Summary for Patent: 5,480,656

Title: Prolonged release microcapsules
Abstract:This invention provides a microcapsule designed for zero order release of a physiologically active polypeptide over a period of at least two months, which is produced by preparing a water-in-oil emulsion comprising an inner aqueous layer containing about 20 to 70% (w/w) of said polypeptide and an oil layer containing a copolymer or homopolymer having a weight-average molecular weight of 7,000 to 30,000, wherein the composition ratio of lactic acid/glycolic acid in the copolymer or homopolymer is 80/10 to 100/0, and then subjecting said water-in oil emulsion to microencapsulation.
Inventor(s): Okada; Hiroaki (Suita, JP), Inoue; Yayoi (Kyoto, JP), Ogawa; Yasuaki (Otokuni, JP)
Assignee: Takeda Chemical Industries, Ltd. (Osaka, JP)
Application Number:08/188,918
Patent Claim Types:
see list of patent claims
Compound; Dosage form;
Patent PDF download available with subscription

No matches for this query

Foreign Priority and PCT Information for Patent: 5,480,656

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan2-033133Feb 13, 1990

International Patent Family for Patent: 5,480,656

Country Document Number Publication Date
United States5643607Jul 01, 1997
United States5814342Sep 29, 1998
Russia2018306Aug 30, 1994
Russia2098121Dec 10, 1997
Portugal96727Oct 31, 1991
This preview shows a limited data set
Subscribe for full access , or try a free trial

Export unavailable in trial.
Subscribe for complete access.

DrugPatentWatch Archives

You are viewing the current data set
Select a link below to view the archives:

 2000   2001   2002   2003   2004   2005   2006   2007   2008   2009   2010   2011   2012   2013  

Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors.

Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided information. There is no warranty that the information contained herein is error free. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

Connect with Social Media:

Follow DrugPatentWatch on Twitter Connect with DrugPatentWatch on Linkedin Drug Patents on LinkedIn

Copyright © 2002-2014 thinkBiotech LLC. ISSN: 2162-2639

Other thinkBiotech sites: PatentStatBiotechBlogJournal of Commercial Biotechnology

`abc