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Filtering Through Membrane (e.g., Ultrafiltration)

Filtering Through Membrane (e.g., Ultrafiltration) patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

Related Categories:

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 > Diffusing Or Passing Through Septum Selective As To Material Of A Component Of Liquid > Filtering Through Membrane (e.g., Ultrafiltration)



High-density polydicyclopentadiene
12/04/14 - 20140353254 - The invention provides highly cross-linked polydicyclopentadiene matrices and methods for using such matrices to separate components having varying cross-sectional areas....

Diatomaceous earth products, processes for preparing them, and methods of their use
11/27/14 - 20140346112 - A particulate material includes agglomerated diatomaceous earth and a silicone binder. A process for preparing a diatomaceous earth product includes agglomerating at least one natural diatomaceous earth with at least one silicone material, and subjecting the agglomerated diatomaceous earth to at least one heat treatment at a temperature ranging from...

High throughput membrane
11/20/14 - 20140339164 - Membranes having first and second porous portions, wherein the first portion has a more open pore structure than the second portion, wherein the first porous portion includes pores prepared by removing introduced particles, as well as methods of making and using the membranes, are disclosed....

High throughput membrane with rough surface
11/20/14 - 20140339165 - Membranes having a single layer comprising first and second porous portions, wherein the first portion has a more open pore structure than the second portion, wherein the first porous portion includes a surface prepared by removing introduced particles, as well as methods of making and using the membranes, are disclosed...

High throughput membrane with channels
11/20/14 - 20140339166 - Membranes having first and second porous portions, wherein the first portion has a more open pore structure than the second portion, wherein the first porous portion includes channels prepared by removing introduced fibers, as well as methods of making and using the membranes, are disclosed....

1234yf- and 1234ze-based polymeric membrane materials, membrane preparations and uses thereof
11/20/14 - 20140339167 - The present invention generally relates to polymeric membrane materials formed, at least in part, from monomeric material selected from 2,3,3,3-tetrafluoropropene (CF3CF═CH2, HFO-1234yf) or trans-1,3,3,3-tetrafluoropropene (CF3CH═CFH, HFO-1234ze), and to membrane preparations and uses thereof in water desalination, filtration, membrane distillation, pervaporation, and selective gas separation....

Aquaporin based thin film composite membranes
11/13/14 - 20140332468 - Present invention relates to a thin film composite membrane wherein a thin selective layer, having incorporated amphiphilic vesicles, is supported by a microporous substrate. A process of preparing the thin film composite membrane and its use are also disclosed....

Device and method for producing sterile water by means of a cross-flow liquid sterile filter
10/23/14 - 20140311979 - The aim of the invention is to provide a device and a method for producing sterile water by means of a cross-flow liquid sterile filter without the closure of the water line during the filtration process, said closure being bacteria-tight according to the prior art of point-of-use potable-water sterile filtration,...

Method of controlling blood reservoir volume and flow in an extracorporeal blood circulation system
09/18/14 - 20140263065 - A method comprising recirculating a patient's blood as a fluid through an extracorporeal circuit having a venous cannula line for fluid flow from the patient to an oxygenator and an arterial cannula line for fluid flow from the oxygenator to the patient; and adjusting the volume of fluid flow from...

Immobilization of antimicrobial polymers on ro membrane to reduce biofilm growth and biofouling
08/28/14 - 20140238939 - The present invention discloses antimicrobial water treatment membranes, comprising a water treatment membrane, covalently attached to one or more antimicrobial polymers or derivatives thereof, either directly or via one or more tether molecules. There are also provided a process for preparing these antimicrobial membranes, and uses thereof in water treatment...

Single stage filtration system and method for use with blood processing systems
08/28/14 - 20140238940 - A reservoir for use with a blood collection system includes a housing defining a cavity and a single stage filter. The housing has an inlet for receiving fluid from a source and an outlet. The inlet is in fluid communication with the cavity. The single stage filter includes a filter...

Isolation valve
08/21/14 - 20140231349 - Systems and methods for isolating a filtration module are provided. The systems and methods may utilize a removable end cap comprising an isolation valve. In certain systems and methods, the isolation valve may be configured to selectively allow fluid communication between a port and a filtrate passageway of one filtration...

Method for manipulating a membrane element within a pressure vessel
07/31/14 - 20140209538 - Provided is a method for manipulating a membrane element within a pressure vessel including a central axis, a distal end, a proximal end and an inlet disposed at the proximal end. The membrane element has a membrane element front face with at least one fluid opening and a membrane element...

Nanosieve composite membrane
07/03/14 - - The invention is directed to a nanosieve composite membrane, a method for preparing a nanosieve composite membrane, a roll-to-roll apparatus for carrying out the method, and a method for separating a feed flow with particulate matter. The nanosieve composite of the invention comprises an inorganic nanosieve layer supported on a...

Nanofiltration membrane
06/26/14 - 20140175013 - The invention relates to a nanofiltration membrane having a porous support membrane, the surface of the support membrane being coated with polymer particles which are prepared by emulsion polymerization and which have an average particle diameter of less than 70 nm, preferably between 30-60 nm, more preferably between 40-50 nm....

Water purification device
06/26/14 - 20140175014 - A water purification device includes an expandable water collecting device having a variable volume, wherein at least part of the surface of the water collecting device includes a filter area, the filter area being permeable to water and allowing water to enter the water collecting device when the filter area...

Separation material
06/19/14 - 20140166580 - A separation material includes a matrix that is bound to a saccharide, enabling the separation from a liquid of substances that selectively bind the saccharide. A method for preparing the separation material and a method for separating substances from a liquid that selectively bind a saccharide of the separation material...

Process for the treatment of contaiminated water by means of adsorption and nanofiltration
06/05/14 - 20140151303 - A process for the treatment of water contaminated by polar and/or apolar organic compounds, and/or by heavy metal salts, and/or by oil dispersed or in emulsion, comprising sending said contaminated water to a system comprising: at least one adsorption (3) unit including at least one microporous or mesoporous alumino-silicate; at...

Fluorinated ethylene-propylene polymeric membranes for gas separations
05/22/14 - 20140138314 - A fluorinated ethylene-propylene polymeric membrane comprising a copolymer comprising 2,3,3,3-tetrafluoropropene and vinylidene fluoride is disclosed. The fluorinated ethylene-propylene polymeric membranes of the invention are especially useful in gas separation processes in air purification, petrochemical, refinery, and natural gas industries....

Method of making a water-sterilizing polymeric membrane
05/22/14 - 20140138315 - A water-sterilizing polymeric membrane is made from cotton fibers, conductive polyaniline and silver nanostructures. In a first, two-step method of making the membrane, cotton is coated with a conductive polyaniline polymer, and then silver nano structures are incorporated with the polyaniline-coated cotton by conformal or dip coating. The silver nanostructures...

Method of making and using an electrically conductive composite membrane
05/22/14 - 20140138316 - The method of making and using an electrically conductive composite membrane provides for manufacturing of an electrically conductive composite membrane for water sterilization. The electrically conductive composite membrane is made by first dipping cotton fiber into a graphite solution to form a cotton-graphite composite fiber. The cotton-graphite composite fiber is...

Super-surface selective nanomembranes providing simultaneous high permeation flux and high selectivity
05/01/14 - 20140116944 - Superhydrophobic membrane structures having a beneficial combination of throughput and a selectivity. Methods of making and using the membrane structures....

Floating wicks for slurry consolidation
03/13/14 - 20140069867 - Systems and methods for remediating an initially liquid-like slurry pond include distributing one or more floating wicks into the slurry pond, wherein the slurry pond includes a slurry with a supernatant level above the slurry. A method also includes placing a load on the slurry, wherein the load causes an...

Methods for automated blood prime
03/13/14 - 20140069868 - A method is disclosed for priming a kit for use in a therapeutic apheresis procedure with previously-collected blood prior to flowing the patient's whole blood into the inlet line of the kit, as part of a procedure in which a selected blood component is separated from a patient's whole blood,...

Cross flow filtration system using atmospheric bladder tank
03/13/14 - 20140069869 - A fluid treatment system is disclosed comprising a cross flow filter (110) comprising a feed portion, a concentrate portion, and a permeate portion. The treatment system further comprises a permeate storage apparatus (130) fluidly connected to the permeate portion and comprising a pressure boundary comprising an inner wall surrounding a...

Apparatus and method for removing finely divided solids from a liquid flow
02/27/14 - 20140054226 - Apparatus (8) for filtering, clarifying or polishing, a liquid flow containing finely divided solids. In the apparatus (8), the liquid flow to be filtered is directed to the outer surface of a filter element (3) with high speed and in tangential direction, and thereby, influenced by the generated shearing force,...

Membrane with multiple size fibers
02/20/14 - 20140048486 - Membranes including at least two sets of fibers having different average diameters, as well as methods of using and methods of making the membranes are disclosed....

Filtration membrane
02/20/14 - 20140048487 - A filtration membrane (4) including a porous base layer (8) arranged adjacent to a filtration layer (6) having pores (10) extending through the filtration layer (6) is provided. The filtration layer is electrically conductive and at least one compound (24, 26) is attached on the filtration layer (6), thereby providing...

Rotary vacuum-drum filter with membrane filter
02/13/14 - 20140042093 - A system for separating a penetrant from a feed steam, using a drum filter [10], which includes a drum [20] with a porous drum wall [30], a tank in which the drum is mounted, a feed stream, a semipermeable membrane [50] on the outside of the drum [20], a system...

Filtering blood
02/13/14 - 20140042094 - An independent blood filter device depends on flow geometry to deliver blood serum or plasma free of detrimental levels of hemoglobin. It depends critically on an upstream flow rate or pressure differential limiting control element or device that limits the rate of change of pressure differential across the filter element....

Nanosieve composite membrane
02/13/14 - 20140042095 - The invention is directed to a nanosieve composite membrane, a method for preparing a nanosieve composite membrane, a roll-to-roll apparatus for carrying out the method, and a method for separating a feed flow with particulate matter. The nanosieve composite of the invention comprises an inorganic nanosieve layer supported on a...

Water treatment apparatus with circulating flow path and water treatment method using the same
01/23/14 - 20140021132 - A water treatment apparatus and a water treatment method using the same are provided. The water treatment apparatus includes a cohesive agent input device configured to input a cohesive agent to raw water, a membrane filtering device, a raw water pump configured to transfer raw water including the cohesive agent...

Apparatus and method for nanoporous inorganic membranes and films, methods of making and usage thereof
01/23/14 - 20140021133 - A method for fabricating isolated pores in an inorganic membrane includes the steps of patterning the inorganic membrane to selectively expose a portion of the membrane, forming a plurality of tracks of material damage in the exposed portion of the inorganic membrane by irradiation with energetic ions, and chemically etching...

Membrane separation devices, systems and methods employing same, and data management systems and methods
12/26/13 - 20130341275 - A membrane separation device is disclosed along with systems and methods employing the device in blood processing procedures. In one embodiment, a spinning membrane separator is provided in which at least two zones or regions are created in the gap between the membrane and the shell, such that mixing of...

Membrane separation devices, systems and methods employing same, and data management systems and methods
12/19/13 - 20130334139 - A membrane separation device is disclosed along with systems and methods employing the device in blood processing procedures. In one embodiment, a spinning membrane separator is provided in which at least two zones or regions are created in the gap between the membrane and the shell, such that mixing of...

Pneumatic alternating pressure membrane cell separation system
12/05/13 - 20130319944 - Provided are filtration systems that can be referred to as Pneumatic Alternating Cell Separator (PACS), useful components thereof in the form of assemblies or kits of parts that can be used to build the system, and use of the system for filtering fluids, for instance, in cell culture perfusion systems...

Metal-organic framework supported on porous polymer
11/28/13 - 20130313193 - The growth of continuous MOF membranes on porous polymeric supports is reported, wherein a dip-coating procedure is used to deposit a layer of seed MOF nanocrystals on the surfaces of porous polymers, preferably in the form of hollow fibers, and polycrystalline MOF membranes are subsequently grown at temperatures as low...

Method of optimizing clearance for protein-bound molecules using cascade filtration therapy
11/28/13 - 20130313194 - A method of removing unwanted molecules from blood includes (i) directing a flow of blood from a patient through a first hemofilter, (ii) removing a volume of fluid from the blood using the first hemofilter, (iii) combining a volume of first substitution fluid with an outflow from the first hemofilter,...

Pvdf membranes having a superhydrophobic surface
11/21/13 - 20130306560 - The present invention relates to the field of hydrophobic solid surfaces, and more particularly to polyvinylidene fluoride (PIMP) membranes having a superhydrophobic surface. The invention also relates to the process for preparing these membranes and also to the industrial applications thereof. The PVDF membranes according to the invention comprise a...

Antimicrobial membrane containing silver nanoparticles
11/14/13 - 20130299428 - ii) at least 75 wt. % of said metal is present in a reduced form....

Device and method for filtering a suspension
11/07/13 - 20130292332 - Method for filtering a suspension consisting of a fluid and cell or solid particles, wherein the suspension is guided at least through a curved capillary tube of a filter and passes at least partially through a porous filter wall of the curved capillary tube in order to separate the fluid...

Cross-linking method and articles produced thereby
10/31/13 - 20130284672 - A method for cross-linking a styrenic polymer, the method comprising providing a partly sulphonated styrenic polymer and cross-linking the partly sulphonated styrenic polymer in the presence of a polyphosphoric acid....

Membrane filtration device and operating method for membrane filtration device
10/24/13 - 20130277309 - The purpose of the present invention is to provide a membrane filtration device able to supply electric power to a sensor under various conditions, including situations in which a plant is not operating. The membrane filtration device of the present invention comprises a membrane element for generating a permeate by...

Graphene based filter
10/17/13 - 20130270188 - Two-dimensional material based filters, their method of manufacture, and their use are disclosed. The filters may include at least one active layer disposed on a porous substrate. The at least one active layer may include intrinsic and/or intentional formed pores. In some embodiments, the flow resistance of the porous substrate...

System and method for collecting and treating plasma protein fractions
10/10/13 - 20130264288 - Method and apparatus for separating plasma from blood in a separation vessel, separating the separated plasma into desired plasma proteins in a plasma separator fluidly connected to the separation vessel to receive the separated plasma, and adding photosensitizer to the desired plasma proteins for viral inactivation treatment of such proteins....

Large pore polymeric membrane
10/03/13 - 20130256229 - Porous membranes including a first microporous skin surface having a pore density of at least about 20 pores/50,000 μm2, and a second porous surface, and a bulk between the surfaces, wherein the bulk has a pore density of at least about 120 pores/mm2, as well as methods of using and...

Membrane suitable for blood filtration
10/03/13 - 20130256230 - The invention relates to a membrane construction comprising multiple layers wherein at least one of the layers is a nanoweb made of polymeric nanofibers, wherein the mean flow pore size of the nanoweb is in the range from 50 nm to 5 μm, wherein the number average diameter of the...

Recirculating fluid filtration system
09/26/13 - 20130248450 - A fluid filtration system comprising a cross-flow filter is arranged to permit a first pump to recirculate part of the retentate of the filter to the inlet of the cross-flow filter and a second pump to return part of the permeate to the inlet of the cross-flow filter. A third...

Polyphenol-type polymer coating of filtration membranes
09/19/13 - 20130240445 - A filtration membrane is coated with a polymer made from a compound comprising a benzenediol or a substituted phenol, such as catechol. The polymer deposition process comprises exposing the membrane to the compound in an aqueous alkaline solution. A membrane module may be immersed in the solution. Optionally, the solution...

Methods of operating a membrane separation device, control devices for a membrane separation device and devices that operate a membrane separation device
09/19/13 - 20130240446 - A method of operating a membrane separation device in a continuous flow process includes in the membrane separation device, separating a supply liquid into a first partial stream and a second partial stream, wherein flow rate of the second partial stream and/or recovery rate of the second partial stream is...

Filtration module
09/12/13 - 20130233799 - The present invention provides a filtration module having at least one membrane layer and a spacer layer, wherein the spacer includes: a polymeric matrix; and a biocide physically embedded into or attached to the polymeric matrix. Moreover, the invention provides a method for reducing the concentration of bacteria in water,...

Low concentration wastewater treatment system and process
09/12/13 - 20130233800 - A low concentration wastewater treatment system is provided that includes a high flux adsorbent material treatment system integrated with a low flux adsorbent material biological regeneration reactor. The high flux adsorbent material treatment system includes one or more unit operations for mixing low concentration wastewater with adsorbent material that is...

Separation membrane module and fluid separation method
09/05/13 - 20130228518 - A separation membrane module and fluid separation method are disclosed. A plurality of tubes are arranged in a body. A first chamber on a first fixed plate at an opposite side where the tubes are attached, comprising a plurality of rooms divided by at least one divider. A second chamber...

Microporous material having filtration and adsorption properties and their use in fluid purification processes
09/05/13 - 20130228519 - The present invention is also directed to methods of separating suspended or dissolved materials from a fluid stream such as a liquid or gaseous stream, comprising passing the fluid stream through the ultrafiltration membrane described above....

Polymer coatings that resist adsorption of proteins
09/05/13 - 20130228520 - The invention provides membranes useful for filtration of water and other liquids. The membrane may be a composite membrane having a polymer layer incorporating quaternary phosphonium or ammonium groups. The polymer layer may be resistant to protein adsorption in an aqueous environment. The membrane may also be a surface-modified membrane...

Method and control devices for production of consistent water quality from membrane-based water treatment for use in improved hydrocarbon recovery operations
08/22/13 - 20130213892 - A method for treating water including intaking a first amount of water from a first source into a plurality of treatment blocks, treating the first amount of water, outputting aqueous treated water streams from each of the plurality of treatment blocks, separating the aqueous treated water streams from each of...

Membrane for water purification
08/15/13 - 20130206694 - A porous membrane can include a polyazole....

Combination unit and combination method of multiple membrane shells
08/15/13 - 20130206695 - The present invention discloses a combination unit and method of multiple membrane shells. The combination unit of multiple membrane shells is formed by bundling multiple membrane shells in parallel, wherein the raw water port and the concentrated water port of each of the membrane shells are respectively connected and sealed...

Asymmetric membranes
08/01/13 - 20130193075 - Asymmetric membranes comprising a first asymmetric porous zone including a first porous asymmetry that increases from the first exterior surface through the first porous zone of the bulk, and a second asymmetric porous zone including a second porous asymmetry that increases from the second exterior surface through the second porous...

Drive device for a membrane filtration arrangement
08/01/13 - 20130193076 - The invention relates to a membrane filtration device comprising a plurality of planar membrane filter elements which are combined to form a membrane package and are disposed within the membrane package parallel to and spaced apart from one another. A wall encloses the membrane package on all sides, and within...

Centrifugal filter
07/25/13 - 20130186830 - Filtration device suited for concentration of liquid samples, particularly biomolecules, and a method of concentrating, desalting, purifying and/or fractionating liquid samples. In certain embodiments the device includes a housing having a sample reservoir, and two substantially vertically oriented and spaced apart membranes disposed in the housing. An underdrain is associated...

Nanoporous materials, manufacture of nanoporous materials and applications of nanoporous materials
07/18/13 - 20130180920 - A nanoporous material is disclosed having a plurality of lamellae. Through each lamella is an array of penetrating pores. Adjacent lamellae are spaced apart by an intervening spacing layer. The spacing layer comprises an array of spacing elements integrally formed with and extending between the adjacent lamellae. The spacing layer...

Axial bypass sleeve
06/27/13 - 20130161257 - The present disclosure describes an axial bypass sleeve for use with a spiral wound membrane element. The axial bypass sleeve has a protrusion and an opening that defines a flow path to provide fluid flow communication through the axial bypass sleeve. In use, the axial bypass sleeve is wrapped around...

Sanitary brine seal
06/27/13 - 20130161258 - The present disclosure describes a brine seal for use with a spiral wound membrane element. The brine seal has an elongate body with a flexible wing. The brine seal is wrapped around the spiral membrane element with a space between each turn of the brine seal. The wrapped spiral wound...

Blend polymeric membranes comprising tetrazole-functionalized polymer of intrinsic microporosity and polyethylene glycol
06/13/13 - 20130146538 - The present invention is for high permeance and high selectivity blend polymeric membranes comprising poly(ethylene glycol) (PEG) and a highly permeable polymer selected from the group consisting of polymers of intrinsic microporosity (PIMs), tetrazole-functionalized polymers of intrinsic microporosity (TZPIMs), or mixtures thereof. The present invention also involves the use of...

Membrane with localized asymmetries
06/13/13 - 20130146539 - Membranes with localized asymmetries, devices including the membranes, and methods of making and using the membranes, are disclosed....

Water treatment apparatus, system and process
05/23/13 - 20130126433 - Water treatment apparatus, including: a ceramic filter; and a flow apparatus operable to pass water through the ceramic filter in a forward direction so as to filter the water, the flow apparatus also operable to pass water through the ceramic filter in a reverse direction so as to remove material...

Polymeric material, production and use thereof
05/16/13 - 20130118980 - (B) at least one diol or triol....

Porous hollow fiber
05/16/13 - 20130118981 - Porous hollow fibers comprising first pores having an average length in the range from 0.045 μm to 120 μm and an average width in the range from 0.030 μm to 20 μm, measured in a fiber direction, wherein the ratio of the average length of the first pores to the...

Water filtration article and related methods
05/09/13 - 20130112621 - A water filtration article has a filtration layer of thickness no larger than 10 microns including porous polytetrafluoroethylene coated with a hydrophilic coating comprising uncrosslinked ethylene-vinyl alcohol copolymer. Methods include water filtration using and manufacture of such a water filtration article....

Device allowing serial use of clean and alternative blood filters during blood filtration
04/25/13 - 20130098839 - A device that allows for serial (time) use of clean blood filters during the use of a heart lung machine. The device is comprised of a series of filters and a switching mechanism that allows the new filter to be placed in the blood flow pathway while at the same...