Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
February 18, 2014
Patent Application Number
12681189
Date Filed
September 26, 2008
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention provides a method for purifying a protein to remove impurities from a mixture liquid containing a desired protein and the impurities, comprising the step of performing filtration using a porous membrane having a graft chain on a pore surface and an anion-exchange group fixed to the graft chain.
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