Drug – bio-affecting and body treating compositions – Immunoglobulin – antiserum – antibody – or antibody fragment,... – Structurally-modified antibody – immunoglobulin – or fragment...
Reexamination Certificate
2006-07-11
2006-07-11
Saunders, David (Department: 1644)
Drug, bio-affecting and body treating compositions
Immunoglobulin, antiserum, antibody, or antibody fragment,...
Structurally-modified antibody, immunoglobulin, or fragment...
C424S138100, C424S155100, C530S387300, C530S388850
Reexamination Certificate
active
07074404
ABSTRACT:
A method for purifying a polypeptide by ion exchange chromatography is described which involves changing the conductivity and/or pH of buffers in order to resolve a polypeptide of interest from one or more contaminants.
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Basey Carol D.
Blank Greg S.
Genentech Inc.
Lee Wendy M.
Saunders David
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