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Class Information
Number: 210/323.1
Name: Liquid purification or separation > Plural distinct separators > Filters
Description: Apparatus in which there are plural distinct filter units.










Sub-classes under this class:

Class Number Class Name Patents
210/344 Abutted alternating medium and pan type receiver 43
210/343 Alternating oppositely opening liquid distributors 15
210/335 In series for prefilt flow 307
210/324 Movable separating elements 56
210/342 One element within another 156
210/340 Parallel filters with flow controller 203
210/345 Radial or radially connected to central header 93
210/346 Spaced wall-type filters 257
210/323.2 Tubular 553
210/332 With residue removal or liquid agitation 179


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8709252 (4940 Apr. 29, 2014
8702910 Multi-stage sulfur removal system and process for a fuel system Apr. 22, 2014
8702981 Wedge-shaped and stackable filter cartridges Apr. 22, 2014
8685245 Concentrator filter Apr. 1, 2014
8678202 Modular filter elements for use in a filter-in-filter cartridge Mar. 25, 2014
8679751 System and method for particle filtration Mar. 25, 2014
8640884 Fluid treatment elements and fluid treatment arrangements with spaces between fluid treatment elements and methods for making and using them Feb. 4, 2014
8623211 Filtering and condensing apparatus of suction type Jan. 7, 2014
8617394 Asymmetric nanotube containing membranes Dec. 31, 2013
8617391 Filter component Dec. 31, 2013
8617399 Dynamic filtration system and associated methods Dec. 31, 2013
8616272 Downhole water-oil separation arrangement and method Dec. 31, 2013
8608957 Oil tank Dec. 17, 2013
8591731 Dual media fluid filter Nov. 26, 2013
8590712 Modular filter elements for use in a filter-in-filter cartridge Nov. 26, 2013
8568588 Apparatus for osmotic power generation and desalination using salinity difference Oct. 29, 2013
8562832 Three-stage slurry processing apparatus and method Oct. 22, 2013
8557116 Molecular separator Oct. 15, 2013
8524083 Beer filter Sep. 3, 2013
8517185 Two stage fuel water separator and particulate filter utilizing pleated nanofiber filter material Aug. 27, 2013
8480895 Vacuum base and related methods and apparatus for vacuum filtration Jul. 9, 2013
8470175 Space reducing filter with supplemental fluid processing element Jun. 25, 2013
8465644 Membrane element in immersion type membrane separation apparatus Jun. 18, 2013
8425862 Automated system for detecting the fixation of biomolecules on a sample in three dimensions Apr. 23, 2013
8398852 Drainless reverse osmosis water purification system Mar. 19, 2013
8382981 Frame system for membrane filtration modules Feb. 26, 2013
8377300 Fluid separation element, anti-telescoping device for fluid separation element, and fluid separation device Feb. 19, 2013
8372656 Hydrodynamic filter, filtering apparatus including the same, and filtering method using the hydrodynamic filter Feb. 12, 2013
8365924 Systems and methods for filtering fuel Feb. 5, 2013
8366929 Spacing member, membrane element, and submerged membrane separation device Feb. 5, 2013
8357296 Centrifugal filter Jan. 22, 2013
8303806 Fluid processing Nov. 6, 2012
8298419 Multi filter lubricant purification system Oct. 30, 2012
8287726 Filter for removing sediment from water Oct. 16, 2012
8282822 Membrane cartridge in immersion type membrane separation apparatus Oct. 9, 2012
8277407 Artificial kidney Oct. 2, 2012
8187457 Test paper and porous membrane May. 29, 2012
8187466 Safety vent structure for extracorporeal circuit May. 29, 2012
8182685 Effluent filter cartridge with progressive filtration May. 22, 2012
8177073 Water processor May. 15, 2012
8133457 Unit for preparing a sample for the microbiological analysis of a liquid Mar. 13, 2012
8128724 Non-cylindrical filter elements, and methods Mar. 6, 2012
8123935 Filter for removing sediment from water Feb. 28, 2012
8110115 Mobile water treatment Feb. 7, 2012
8088189 Multi-flow filtration system Jan. 3, 2012
8088291 Method of collecting medical waste in a waste collection unit using disposable manifold with staged waste filtering/processing Jan. 3, 2012
8083943 Filtration device Dec. 27, 2011
8075774 Effluent filter cartridge with progressive filtration Dec. 13, 2011
8069990 Sealing gasket for a filter element, and a module including a filter element fitted with such a sealing gasket Dec. 6, 2011
8052867 Dual media fluid filter Nov. 8, 2011

1 2 3 4 5 6










 
 
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