Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing

Serving leading biopharmaceutical companies globally:

Baxter
AstraZeneca
Mallinckrodt
Merck
McKinsey
Deloitte
US Department of Justice
UBS
Queensland Health
Chubb

Generated: February 22, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,677,191

« Back to Dashboard

Summary for Patent: 4,677,191
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:
see list of patent claims
Compound; Use;

Drugs Protected by US Patent 4,677,191

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

This preview shows a limited data set. Subscribe for full access, or try a Free Trial

Foreign Priority and PCT Information for Patent: 4,677,191

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

International Patents Family Members for US Patent 4,677,191

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 39935 ➤ Try a Free Trial
Austria 39936 ➤ Try a Free Trial
Bulgaria 61520 ➤ Try a Free Trial
Canada 1236641 ➤ Try a Free Trial
Canada 1256638 ➤ Try a Free Trial
Germany 3567470 ➤ Try a Free Trial
Germany 3567471 ➤ Try a Free Trial
European Patent Office 0171907 ➤ Try a Free Trial
European Patent Office 0172636 ➤ Try a Free Trial
Hong Kong 19592 ➤ Try a Free Trial
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

This preview shows a limited data set. Subscribe for full access, or try a Free Trial

For more information try a trial or see the plans and pricing

Serving hundreds of leading biopharmaceutical companies globally:

Merck
QuintilesIMS
Mallinckrodt
Accenture
Citi
AstraZeneca
Express Scripts
Medtronic
Julphar

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.

botpot