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Class Information
Number: 210/805
Name: Liquid purification or separation > Processes > Separating > And recirculating liquid
Description: Process including a step of recycling all or part of the liquid being treated or the separated constituent.










Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

Patent Number Title Of Patent Date Issued
8702991 Electrical microorganism aggregation methods Apr. 22, 2014
8679347 Multi-use high water recovery process Mar. 25, 2014
8658043 Water treatment system and method Feb. 25, 2014
8652333 Solvent removal Feb. 18, 2014
8623214 Desalination system and method for integrated treatment of brackish concentrate and seawater Jan. 7, 2014
8623174 Liquid evaporation system with heated liquid Jan. 7, 2014
8613858 Separation process Dec. 24, 2013
8591745 System and method for filtration of liquids Nov. 26, 2013
8585869 Multi-stage wastewater treatment system Nov. 19, 2013
8544158 Fluid filter with an attachment structure on an endplate of the filtering element Oct. 1, 2013
8524091 Apparatus, system, and method for filtration of a dosing fluid in an exhaust aftertreatment system Sep. 3, 2013
8518261 Water purification apparatus and method for using pressure filter and pore control fiber filter Aug. 27, 2013
8512576 System and method for the production or handling of heavy oil Aug. 20, 2013
8506819 System and method of filtering metalworking fluid Aug. 13, 2013
8506820 Process and apparatus for online rejuvenation of contaminated sulfolane solvent Aug. 13, 2013
8506817 Enhanced high water recovery membrane process Aug. 13, 2013
8501017 Coolant filtration system and method for metal working machines Aug. 6, 2013
8501001 Fluid filter with an attachment structure on an endplate of the filtering element Aug. 6, 2013
8486277 Internal bypass filtration circuit Jul. 16, 2013
8466312 Terephthalic acid purge filtration rate by controlling % water in filter feed slurry Jun. 18, 2013
8460550 Continuous processing and solids handling in near-critical and supercritical fluids Jun. 11, 2013
8440087 Thickeners having self-diluting feedwell May. 14, 2013
8439112 Method and system for surface filtering of solids from return fluids in well operations May. 14, 2013
8382986 Methods of and systems for dewatering algae and recycling water therefrom Feb. 26, 2013
8349191 Diffuser/emulsifier for aquaculture applications Jan. 8, 2013
8343310 Wastewater treatment system and method Jan. 1, 2013
8329041 Ship with a contaminant separation device Dec. 11, 2012
8324377 Method of separating water-soluble cellulose ether Dec. 4, 2012
8318019 Methods of dewatering algae for extraction of algal products Nov. 27, 2012
8308957 Process for separating mercaptans from caustic Nov. 13, 2012
8252148 Containment extension and processing method Aug. 28, 2012
8246791 Multi-stage column distillation (MSCD) method for osmotic solute recovery Aug. 21, 2012
8241503 Enhanced high water recovery membrane process Aug. 14, 2012
8231793 Combination filter arrangement and method Jul. 31, 2012
8226832 Portable water treatment method Jul. 24, 2012
8206589 Desalination system and method for integrated treatment of brackish concentrate and seawater Jun. 26, 2012
8201697 Hydroclone based fluid filtration system Jun. 19, 2012
8197693 Apparatus and process for producing electricity using pressure retarded osmosis during desalination of sea water Jun. 12, 2012
8192631 Fluid treatment device and method Jun. 5, 2012
8187429 Wastewater treatment apparatus and method with stair-like heat treatment tanks May. 29, 2012
8182689 Methods of and systems for dewatering algae and recycling water therefrom May. 22, 2012
8177915 Filtration system for a dishwasher, and associated apparatus and method May. 15, 2012
8162568 Thermogenerator to remediate contaminated sites Apr. 24, 2012
8153782 Reformation of ionic liquids Apr. 10, 2012
8142667 Manure separation for digester method and apparatus Mar. 27, 2012
8137558 Stepwise extraction of plant biomass for diesel blend stock production Mar. 20, 2012
8133401 Method and apparatus for treating lime slurry for grit removal Mar. 13, 2012
8128829 Cross flow filter device Mar. 6, 2012
8123955 Method of optimizing feed concentration in a sedimentation vessel Feb. 28, 2012
8097172 Recovery of organic compounds using a saturator Jan. 17, 2012

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