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Class Information
Number: 210/641
Name: Liquid purification or separation > Processes > Liquid/liquid solvent or colloidal extraction or diffusing or passing through septum selective as to material of a component of liquid; such diffusing or passing being effected by other than only an ion exchange or sorption process > Utilizing plural diverse membranes
Description: Process in which at least two membranes of differing constitution are used.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8685250 System and method for using carbon dioxide sequestered from seawater in the remineralization of process water Apr. 1, 2014
8663463 Extracorporeal fluid circuit and related components Mar. 4, 2014
8652333 Solvent removal Feb. 18, 2014
8629291 Esterification of biodiesel feedstock with solid heterogeneous catalyst Jan. 14, 2014
8623214 Desalination system and method for integrated treatment of brackish concentrate and seawater Jan. 7, 2014
8596465 Ceramic filter Dec. 3, 2013
8591739 Molecular separator Nov. 26, 2013
8586788 Method for producing of ultra-clean and high-purity electronic grade acetic acid Nov. 19, 2013
8545703 Production of glycerin from feedstock Oct. 1, 2013
8545702 Production of biodiesel from feedstock Oct. 1, 2013
8540880 Pretreatment of biodiesel feedstock Sep. 24, 2013
8540881 Pretreatment, esterification, and transesterification of biodiesel feedstock Sep. 24, 2013
8496806 Dehydrator Jul. 30, 2013
8480978 Microfluidic fluid separator and related methods Jul. 9, 2013
8449774 Separation process May. 28, 2013
8414766 Serviceable oil filter device Apr. 9, 2013
8318023 Heated air assisted membrane separation of water and fuel from engine oil in an internal combustion engine Nov. 27, 2012
8293112 Removal of water and methanol from fluids Oct. 23, 2012
8288116 Methods and compositions for isolating metastatic cancer cells, and use in measuring metastatic potential of a cancer thereof Oct. 16, 2012
8273251 Use of electromagnetic pulses in cross-flow filtration systems Sep. 25, 2012
8241503 Enhanced high water recovery membrane process Aug. 14, 2012
8231785 Staged membrane system for gas, vapor, and liquid separations Jul. 31, 2012
8221629 Solvent removal process Jul. 17, 2012
8216627 Plant waste bio-product pomace extract concentrates and processes of producing same Jul. 10, 2012
8206589 Desalination system and method for integrated treatment of brackish concentrate and seawater Jun. 26, 2012
8157994 Extraction with fractionation of oil and co-products from oleaginous material Apr. 17, 2012
8152999 Membrane cascade-based separation Apr. 10, 2012
8142663 Low pressure production of drinking water Mar. 27, 2012
8128787 Membrane-augmented distillation with pressure change to separate solvents from water Mar. 6, 2012
8123943 Pervaporation assembly Feb. 28, 2012
8123946 Method and apparatus for removing metal sulphide particles from a liquid stream Feb. 28, 2012
8119005 Method and apparatus for partial desalination of a concentrated salt solution Feb. 21, 2012
8114255 Membrane-augmented distillation with compression to separate solvents from water Feb. 14, 2012
8083942 Systems and methods for purification of liquids Dec. 27, 2011
8048198 High performance mixed matrix membranes incorporating at least two kinds of molecular sieves Nov. 1, 2011
8012355 Molecular separator Sep. 6, 2011
7981295 Enhanced high water recovery membrane process Jul. 19, 2011
7919001 Water purification system and method using reverse osmosis reject stream in an electrodeionization unit Apr. 5, 2011
7892321 Integrated heated prevaporation module Feb. 22, 2011
7879243 Solvent removal process Feb. 1, 2011
7857978 Membrane for filtering of water Dec. 28, 2010
7785810 Method and compositions for isolating metastatic cancer cells, and use in measuring metastatic potential of a cancer thereof Aug. 31, 2010
7744727 Distillation method Jun. 29, 2010
7687241 Methods and compositions for isolating metastatic cancer cells, and use in measuring metastatic potential of a cancer thereof Mar. 30, 2010
7632410 Universal water purification system Dec. 15, 2009
7621982 Liquid-gas separator for direct liquid feed fuel cell Nov. 24, 2009
7601201 Method of removing carbon monoxide from an oxygen carrier and apparatus for removing carbon monoxide Oct. 13, 2009
7601203 Hybrid vacuum system for fuel deoxygenation Oct. 13, 2009
7569146 By-products from fermentation still bottoms Aug. 4, 2009
7544296 Method and apparatus for separation of milk, colostrum, and whey Jun. 9, 2009

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