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Serving 500+ biopharmaceutical companies globally:

QuintilesIMS
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Generated: September 23, 2017

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Summary for Patent: ► Subscribe

Title: Copolymer and method for producing the same
Abstract:A copolymer of lactic acid and glycolic acid which has a weight-average molecular weight of not less than about 5000 and a dispersity of about 1.5 to 2 is advantageously used as a biodegradable polymer for medical preparation.
Inventor(s): Tanaka; Motoaki (Urawa, JP), Ogawa; Yasuaki (Ibaraki, JP), Miyagawa; Tsutomu (Kawagoe, JP), Watanabe; Toshio (Kawagoe, JP)
Assignee: Wada Pure Chemical Ind., Ltd. (Higashi, JP) Takeda Chemical Industries, Ltd. (Higashi, JP)
Application Number:06/751,672
Patent Claim Types:
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Compound; Use;

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Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan59-140356Jul 06, 1984

International Patent Family for Patent: ► Subscribe

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria39935► Subscribe
Austria39936► Subscribe
Bulgaria61520► Subscribe
Canada1236641► Subscribe
Canada1256638► Subscribe
Germany3567470► Subscribe
Germany3567471► Subscribe
European Patent Office0171907► Subscribe
European Patent Office0172636► Subscribe
Hong Kong19592► 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 500+ biopharmaceutical companies globally:

Chinese Patent Office
Farmers Insurance
QuintilesIMS
Healthtrust
McKinsey
Medtronic
UBS
Federal Trade Commission
Moodys
Queensland Health

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 data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. 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.

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