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Serving hundreds of leading biopharmaceutical companies globally:

Medtronic
Fish and Richardson
Citi
US Department of Justice
Argus Health
Chubb
Farmers Insurance
Harvard Business School
Johnson and Johnson

Generated: April 23, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,789,724

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Summary for Patent: 4,789,724
Title: Preparation of anhydride copolymers
Abstract:A method for preparation of very pure anhydride copolymers with high yield. The anhydride copolymers, consisting of aromatic and aliphatic diacids are formed by melt condensation of individually prepared, pure, isolated prepolymers. The method of preparation is characterized by high yield, reproducibility, polymer purity and controlled composition, and is a short and convenient procedure. The polyanhydrides produced by the disclosed method are particularly well suited to biomedical applications requiring low levels of toxic or inflammatory contaminants and physical and mechanical properties which closely conform to manufacturing specifications.
Inventor(s): Domb; Abraham J. (Brookline, MA), Langer; Robert S. (Somerville, MA)
Assignee: Massachusetts Institute of Technology (Cambridge, MA)
Application Number:06/920,724
Patent Claim Types:
see list of patent claims
Process; Use;

Drugs Protected by US Patent 4,789,724

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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International Patents Family Members for US Patent 4,789,724

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada 1278141 ➤ Try a Free Trial
Germany 266603 ➤ Try a Free Trial
Germany 3752381 ➤ Try a Free Trial
European Patent Office 0266603 ➤ Try a Free Trial
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Moodys
McKesson
UBS
QuintilesIMS
Harvard Business School
Cerilliant
Dow
Cipla
Deloitte

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