Liquid purification or separation – With means to add treating material – Chromatography
Reexamination Certificate
2004-02-18
2010-06-08
Therkorn, Ernest G (Department: 1797)
Liquid purification or separation
With means to add treating material
Chromatography
C210S502100, C210S635000, C210S656000, C502S402000
Reexamination Certificate
active
07731844
ABSTRACT:
Embodiments of the present invention are directed to porous materials for use in solid phase extractions and chromatography. The materials feature at least one hydrophobic component, at least one hydrophilic component and at least one ion-exchange functional group. The materials exhibit superior wetting and ion-exchange performance.
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Brousmiche Darryl W.
Mallet Claude R.
O'Gara John E.
Edwards Angell Palmer & & Dodge LLP
Lauro Peter C.
Russett Mark D.
Therkorn Ernest G
Waters Technologies Corporation
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