Liquid purification or separation – Filter – Supported – shaped or superimposed formed mediums
Reexamination Certificate
2006-01-17
2006-01-17
Walker, W. L. (Department: 1723)
Liquid purification or separation
Filter
Supported, shaped or superimposed formed mediums
C210S486000, C210S314000, C210S316000, C210S321600, C210S321750, C210S321840, C055S497000, C055S498000, C055S520000
Reexamination Certificate
active
06986428
ABSTRACT:
The present invention includes a membrane construction for selectively transferring a constituent to or from a fluid. The membrane construction includes a multi-layer fluid impermeable support sheet having a plurality of supports on at least one side of the support sheet that form a plurality of flow channels. At least one layer of the multi-layer support sheet is a bonding layer. A fluid permeable layer extends over the flow channels and is bonded to the plurality of the supports by the bonding layer.
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Hester Jonathan F.
Kody Robert S.
Radovanovic Philip D.
Reimann Stefan R.
Spiewak Brian E.
3M Innovative Properties Company
Little Douglas B.
Menon K S
Walker W. L.
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