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Class Information
Number: 210/321.87
Name: Liquid purification or separation > Casing divided by membrane into sections having inlet(s) and/or outlet(s) > Cylindrical membrane
Description: Apparatus wherein said semipermeable membrane comprises at least on hollow, generally cylindrical tube.

Sub-classes under this class:

Class Number Class Name Patents
210/321.88 Plural cylindrical membranes all connected for parallel flow 238

Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8702990 Fluid purification media and systems and methods of using same Apr. 22, 2014
8679338 Combined acoustic micro filtration and phononic crystal membrane particle separation Mar. 25, 2014
8668094 Carbon membrane structure and method for producing same Mar. 11, 2014
8657775 Method of treating a subject suffering from end stage renal disease against cardiovascular disease Feb. 25, 2014
8623208 Hollow fiber membrane module and puller used therefor Jan. 7, 2014
8623215 Membrane module for fluid filtration Jan. 7, 2014
8591739 Molecular separator Nov. 26, 2013
8584535 Liquid to liquid biological particle concentrator with disposable fluid path Nov. 19, 2013
8540079 Sludge filtration apparatus and filter assembly thereof Sep. 24, 2013
8496826 Body fluid treating device of hollow fiber membrane type Jul. 30, 2013
8480898 Membrane module for immersed operation Jul. 9, 2013
8460542 Suction filter and fuel supply device Jun. 11, 2013
8419935 Molecular separator Apr. 16, 2013
8414686 Carbon dioxide gas removal from a fluid circuit of a dialysis device Apr. 9, 2013
8414766 Serviceable oil filter device Apr. 9, 2013
8388842 Brine seal for a filtration device Mar. 5, 2013
8354026 Center tube configuration for a multiple spiral wound forward osmosis element Jan. 15, 2013
8329037 Filter apparatus and method of removing organic waste Dec. 11, 2012
8261919 Fluid filter module including handle Sep. 11, 2012
8257590 Hollow fiber membrane module, process for manufacturing the same, hollow fiber membrane module assembly and method of purifying suspended water with use thereof Sep. 4, 2012
8246827 Hollow-fiber membrane assembly having the function of preventing the membrane filaments from cracking Aug. 21, 2012
8216466 Counter top water filtration system Jul. 10, 2012
8197684 Desalination device using selective membranes and magnetic fields Jun. 12, 2012
8192618 Ultrasonic dialyzer Jun. 5, 2012
8187476 Devices and methods for the purification, isolation, desalting or buffer/solvent exchange of substances May. 29, 2012
8153008 Device and method for filtering blood Apr. 10, 2012
8147685 Fluid delivery device Apr. 3, 2012
8119005 Method and apparatus for partial desalination of a concentrated salt solution Feb. 21, 2012
8114199 Sweep air system for membrane air dryer Feb. 14, 2012
8069990 Sealing gasket for a filter element, and a module including a filter element fitted with such a sealing gasket Dec. 6, 2011
8066801 Sweep air system for membrane air dryer Nov. 29, 2011
8062533 Devices and methods for the purification, isolation, desalting or buffer/solvent exchange of substances Nov. 22, 2011
8034161 Carbon dioxide gas removal from a fluid circuit of a dialysis device Oct. 11, 2011
8034242 Dialysis device Oct. 11, 2011
7943045 Reactor with a thermal gradient controlled for the production of pure hydrogen May. 17, 2011
7935254 Reactor for simultaneous separation of hydrogen and oxygen from water May. 3, 2011
7931805 Membrane filter unit and method for the production of the membrane filter unit Apr. 26, 2011
7926666 Rotary filtration system Apr. 19, 2011
7875176 Membrane module for fluid filtration Jan. 25, 2011
7820046 Filter assembly for sampling Oct. 26, 2010
7799560 Compartmentalized device for cell culture, cell processing, and sample dialysis Sep. 21, 2010
7735660 Porous multilayered hollow fiber and filtration module, and method of manufacturing porous multilayered hollow fiber Jun. 15, 2010
7736495 Filtration devices with embedded radio frequency identification (RFID) tags Jun. 15, 2010
7731848 Cartridge module of hollow fiber membranes Jun. 8, 2010
7727394 System and method of fluid filtration utilizing cross-flow currents Jun. 1, 2010
7708152 Method and apparatus for preparing platelet rich plasma and concentrates thereof May. 4, 2010
7695627 Tangential flow filtration devices and methods for leukocyte enrichment Apr. 13, 2010
7655141 Membrane pipe module Feb. 2, 2010
7611627 Membrane module as well as a method for making a membrane module Nov. 3, 2009
7604739 Dialysis device Oct. 20, 2009

1 2 3 4 5 6

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