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Class Information
Number: 210/203
Name: Liquid purification or separation > With means to add treating material > Plural distinct separators > Filters
Description: Apparatus having two or more filtering units.

Sub-classes under this class:

Class Number Class Name Patents
210/204 Sectional chamber press type 6

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8673208 Process and equipment for the production of direct reduced iron and/or pig iron from iron ores having a high-phosphorus content Mar. 18, 2014
8480886 Flat plate membrane bioreactor with a liquid air separator Jul. 9, 2013
8480979 Control scheme for enhanced filtered water systems Jul. 9, 2013
8460543 Portable water purifiers and methods of purifying Jun. 11, 2013
8404113 Transportable disaster-relief systems Mar. 26, 2013
8366929 Spacing member, membrane element, and submerged membrane separation device Feb. 5, 2013
8333893 Filtration separation method for waste resin containing highly radioactive uranium powder and device thereof Dec. 18, 2012
8308953 Methods of dynamic filtration using centrifugal force and methods of making a dynamic filtration device Nov. 13, 2012
8309030 Control scheme for enhanced filtered water systems Nov. 13, 2012
8299000 Slow release lubricant additives gel Oct. 30, 2012
8252171 Water purification, enhancement, and dispensing appliance Aug. 28, 2012
8206592 Treating acidic water Jun. 26, 2012
8186518 Self powered water purification system May. 29, 2012
8158084 Control scheme for enhanced filtered water systems Apr. 17, 2012
8157995 Systems for treating water using iron Apr. 17, 2012
8133385 Grey water treatment system Mar. 13, 2012
8101072 Phosphorous removal system Jan. 24, 2012
8097153 Systems and methods of microfluidic membraneless exchange using filtration of extraction outlet streams Jan. 17, 2012
8083706 Apparatus and systems for membraneless separation of fluids Dec. 27, 2011
8083935 Cuttings vessels for recycling oil based mud and water Dec. 27, 2011
8070952 Apparatus and method for the treatment of blood Dec. 6, 2011
8066874 Apparatus for treating a flow of an aqueous solution containing arsenic Nov. 29, 2011
8062517 System for removal of contaminants from industrial streams Nov. 22, 2011
RE42907 Device for conditioning water produced by air conditioning or environmental dehumidification apparatuses or plants Nov. 15, 2011
8048310 Method and device for the removal of partially protein bound substances Nov. 1, 2011
8038638 Plasma detoxification and volume control system and methods of use Oct. 18, 2011
8034241 Spiral membrane module Oct. 11, 2011
8025800 Element removal apparatus Sep. 27, 2011
8021543 Wastewater treatment system Sep. 20, 2011
8011330 Systems and methods for engine emissions reduction on ships Sep. 6, 2011
8007667 Filtration device with releasable additive Aug. 30, 2011
7959802 Water purification system Jun. 14, 2011
7901571 Apparatus for the incorporation of a dry treatment product into a liquid waste Mar. 8, 2011
7879242 Method and device for the removal of partially protein bound substances Feb. 1, 2011
7850853 Floating porous hollow fiber membrane bundle Dec. 14, 2010
7837866 Drainless reverse osmosis water purification system Nov. 23, 2010
7799745 Slow release lubricant additives gel Sep. 21, 2010
7775374 Self powered water purification system Aug. 17, 2010
7713482 Control scheme for enhanced filtered water systems May. 11, 2010
7691261 Apparatus for combining solids thickening and dewatering in one vessel Apr. 6, 2010
7691273 Method for the clarification of sludge Apr. 6, 2010
7678265 Arrangement for separating environmentally harmful substances from a polluted mass Mar. 16, 2010
7670486 Phosphorus removal system and process Mar. 2, 2010
7615158 Method and device for the removal of partially protein bound substances Nov. 10, 2009
7601261 Sludge flocculator-separator for the physico-chemical treatment of water Oct. 13, 2009
7581558 Controlled release of additives in fluid systems Sep. 1, 2009
7527727 Adsorption system May. 5, 2009
7517448 Recycling cool water filter Apr. 14, 2009
7510653 Filter assembly with a weak base slow release mechanism Mar. 31, 2009
7429324 Device for in-line preparation of liquid for an extracorporeal blood treatment apparatus Sep. 30, 2008

1 2 3 4

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