Last Updated: November 8, 2026

Details for Patent: 8,470,359

Name: Drug Patent Intelligence for US Patent 8470359
Creator: DrugPatentWatch
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Summary for Patent: 8,470,359

Title:	Sustained release polymer
Abstract:	A polymer and a method for its preparation are provided. The polymer comprises poly(lactide), poly(lactide/glycolide) or poly(lactic acid/glycolic acid) segments bonded by ester linkages to both ends of an alkanediol core unit. The polymer is for use in a controlled release formulation for a medicament, preferably leuprolide acetate. The controlled release formulation is administered to a patient as a subcutaneous depot of a flowable composition comprising the polymer, a biocompatible solvent, and the medicament. Controlled release formulations comprising the polymer release leuprolide for treatment of prostate cancer patients over periods of 3-6 months.
Inventor(s):	Richard L. Dunn
Assignee:	Tolmar Inc
Application Number:	US11/469,392
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 8,470,359
Patent Claim Types: see list of patent claims	Use; Composition; Formulation;

Drugs Protected by US Patent 8,470,359

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>Applicant	>Tradename	>Generic Name	>Dosage	>NDA	>Approval Date	>TE	>Type	>RLD	>RS	>Patent No.	>Patent Expiration	>Product	>Substance	>Delist Req.	>Patented / Exclusive Use	>Submissiondate

International Family Members for US Patent 8,470,359

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	259217	⤷ Start Trial
Austria	296088	⤷ Start Trial
Austria	458469	⤷ Start Trial
Australia	1331200	⤷ Start Trial
Australia	2001292931	⤷ Start Trial
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