Liquid purification or separation – Processes – Liquid/liquid solvent or colloidal extraction or diffusing...
Reexamination Certificate
2005-10-18
2005-10-18
Drodge, Joseph (Department: 1723)
Liquid purification or separation
Processes
Liquid/liquid solvent or colloidal extraction or diffusing...
C095S045000, C095S281000, C210S639000, C210S650000, C210S651000
Reexamination Certificate
active
06955762
ABSTRACT:
The present invention relates a method for cleaning polymeric microfiltration membranes and membrane units, and to compositions useful in such methods. The compositions include at least one soluble sulfite reducing agent and a compatible solvent.
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Balczewski Aaron J.
Cargnel Daniel A.
Gallagher Paul Martin
Rainier Tom
Drodge Joseph
Knobbe Martens Olson & Bear LLP
U. S. Filter Wastewater Group, Inc.
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