Back to results
US 6,805,730 B2Granted
Convoluted surface hollow fiber membranes
AssigneeAmersham Biosciences Membrane Separations Corp.
InventorAttila Herczeg
Life of this patent
Estimating the term…
Abstract
Porous hollow polymer fiber membranes having convoluted inside and/or outside surfaces, as well as filter devices comprising a plurality of the hollow fiber membranes, the devices preferably being arranged to direct fluid flow from the inside surface of the membranes to the outside surface, methods of making the membranes, and methods of using the filter devices, are disclosed.
Claims20
A membrane comprising:
- a porous hollow fiber membrane having an inside porous surface and an outside porous surface, wherein at least one surface includes a convoluted porous surface.
A membrane comprising:
- a porous hollow polymer fiber membrane having an inside porous surface, an outside porous surface, and a bore, the membrane having an inside diameter and an outside diameter, wherein the inside diameter and/or the outside diameter has a sinusoidal shape over an arc.
Dependencies are inferred from the claim text.