pH responsive biodegradable polylactic acid derivatives forming polymeric micelles and uses thereof for poorly water soluble drug delivery

Details for Australian Patent Application No. 2002353551 (hide)

Owner Samyang Corporation

Inventors Seo, Min-Hyo; Kim, Bong-Oh; Choi, InJa; Shim, Myung-Seob

Agent Spruson & Ferguson

Pub. Number AU-B-2002353551

PCT Number PCT/KR02/01943

PCT Pub. Number WO2003/033593

Priority 2001/64164 18.10.01 KR

Filing date 17 October 2002

Wipo publication date 28 April 2003

Acceptance publication date 8 September 2005

International Classifications

C08L 067/04 Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain

C08G 063/08 Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule

A61K 009/10 Medicinal preparations characterised by special physical form - Dispersions

A61K 047/34 Medicinal preparations characterised by the non-active ingredients used, e.g. carriers, inert additives - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds

Event Publications

20 March 2003 Complete Application Filed

  Priority application(s): 2001/64164 18.10.01 KR

3 July 2003 Application Open to Public Inspection

  Published as AU-B-2002353551

8 September 2005 Application Accepted

  Published as AU-B-2002353551

12 January 2006 Standard Patent Sealed

10 May 2012 Assignment Registered

  Samyang Corporation The patent has been assigned to Samyang Biopharmaceuticals Corportation

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