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Class Information
Number: 210/321.77
Name: Liquid purification or separation > Casing divided by membrane into sections having inlet(s) and/or outlet(s) > Each section having inlet(s) and outlet(s) > Pleated membrane
Description: Apparatus wherein said semipermeable membrane is pleated (i.e., folded back and forth).










Patents under this class:
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Patent Number Title Of Patent Date Issued
8454829 Spiral crossflow filter Jun. 4, 2013
8414766 Serviceable oil filter device Apr. 9, 2013
8162152 Blood filter device and method of manufacturing the same Apr. 24, 2012
8118175 Venting device for a disc filter Feb. 21, 2012
7905358 Apparatus and methods for filtering granular solid material Mar. 15, 2011
7794593 Cross-flow membrane module Sep. 14, 2010
7686868 Membrane module for separation of fluids Mar. 30, 2010
7563412 Reactor for solid phase synthesis Jul. 21, 2009
7297255 Mass or energy transfer cartridge and module Nov. 20, 2007
7189322 Charged membrane Mar. 13, 2007
7132049 Negatively charged membrane Nov. 7, 2006
7108791 High-resolution virus removal methodology and filtration capsule useful therefor Sep. 19, 2006
6902671 Chemical process system with multi-functional barrier filter Jun. 7, 2005
6565749 Microorganism filter and method for removing microorganism from water May. 20, 2003
6511599 Multi-element cylindrical filter with equalized flow Jan. 28, 2003
6224767 Fluid separation element assembly May. 1, 2001
6190557 Spiral wound type membrane element, running method and washing method thereof Feb. 20, 2001
6103119 Filter cartridges having track etched membranes and methods of making same Aug. 15, 2000
5988400 Pourous fluorocarbon membrane, method for producing thereof and cartridge filter based on said membrane Nov. 23, 1999
5904846 Filter cartridge having track etched membranes and methods of making same May. 18, 1999
5470531 Exchanger and method for manufacturing the same Nov. 28, 1995
5468449 Exchanger and method for manufacturing the same Nov. 21, 1995
5203998 Permanent backwashable filter structure Apr. 20, 1993
4902418 Element having a porous wall Feb. 20, 1990
4786411 Fluid treatment apparatus with semi-permeable membranes Nov. 22, 1988
4617115 Artificial kidney with disposable dialysis liquid circuit Oct. 14, 1986
4617119 Blood exchange apparatus Oct. 14, 1986
4556489 Membrane oxygenator Dec. 3, 1985
4500426 Semipermeable membrane elements Feb. 19, 1985
4455230 Pleated membrane transfer device utilizing potting and thixotropic adhesive Jun. 19, 1984
4451370 Membrane separation element May. 29, 1984
4447326 Device for the diffusion of substances between two fluids via semipermeable membranes May. 8, 1984
4437990 Semipermeable membrane mass transfer apparatus having slotted support members Mar. 20, 1984
4431539 Semipermeable membrane mass transfer apparatus and method for making same Feb. 14, 1984
4419237 Pleated kidney Dec. 6, 1983
4310416 Plate type fluid treatment apparatus Jan. 12, 1982
4304669 Device for the mass transfer between fluids Dec. 8, 1981
4282099 Integral partitioned hemodialysis unit Aug. 4, 1981
4272373 Apparatus for the transfer of substances between two fluids with simultaneous tempering of at least one of the fluids Jun. 9, 1981
4267044 Thixotropic polyurethane compositions as sealants for membrane separatory devices May. 12, 1981
4246121 Fluid flow transfer device with formed-in-place manifold gasket and method of making same Jan. 20, 1981
4239625 Potting pleated membrane Dec. 16, 1980
4238340 Hemodialyzer Dec. 9, 1980
4219422 Apparatus for mass transfer between fluids, provided with an interposed selectively permeable diaphragm unit Aug. 26, 1980
4211602 Surface treatment for blood dialysis cartridges Jul. 8, 1980
4199457 Pleated artificial kidney Apr. 22, 1980
4179364 Diffusion device for blood Dec. 18, 1979
4165287 Potting pleated membrane Aug. 21, 1979
4163721 Edge sealed pleated membrane Aug. 7, 1979
4116841 Semipermeable membrane mass transfer apparatus having collapsed membrane about support members Sep. 26, 1978

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