Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2011-03-15
2011-03-15
Drodge, Joseph W (Department: 1772)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C210S651000, C210S805000, C435S325000, C435S404000, C530S350000, C530S412000, C530S414000, C536S025400
Reexamination Certificate
active
07906024
ABSTRACT:
The addition of buffer to a harvest stream during diafiltration can cause increased turbidity and have other undesirable effects including limiting product recovery. Methods and compositions related to the use of a non-ionic surfactant are provided for improving diafiltration.
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Moran Enda
Pierce James
Drodge Joseph W
Furman Margo H.
Wyeth Research Ireland Limited
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