| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 204520000 |
Ion selective
| 118 |
| 204543000 |
Biological material prepared, recovered, or treated (e.g., urine, etc.)
| 24 |
| 204519000 |
With control responsive to sensed condition
| 20 |
| 204542000 |
Combined with diverse-type separation (e.g., electro-osmotic barrier separation combined with centrifugal separation, etc.) | 4 |
| 20090321260 | LIQUID TREATMENT METHODS AND APPARATUS - A liquid or water treatment apparatus comprising one or both of an electrodialysis cell and a cavitation unit. The cavitation unit generates cavitation in the liquid by flow of the liquid into a constriction where cavitation bubbles are formed and then to an outlet where cavitation bubbles implode, and the constriction includes an aperture formed by walls which are long and narrowly spaced in a plane normal to the flow direction. The electrodialysis cell is arranged with an inlet flow path for directing only part of a quantity of water to be treated through the electrodialysis cell, and an outlet flow path for returning a product of the electrodialysis cell to the remainder of the water. | 12-31-2009 |
| 20110284377 | SYSTEMS AND METHODS FOR REMOVING HYDROGEN PEROXIDE FROM WATER PURIFICATION SYSTEMS - Systems and methods for removing hydrogen peroxide from water purification systems are provided. In a general embodiment, the present disclosure provides a water purification system including a water treatment unit, an electrodeionization unit and a hydrogen peroxide decomposition catalyst in fluid connection with the electrodeionization unit. The water purification system can be fluidly connected to a renal treatment system. | 11-24-2011 |
| 20120211366 | Economic Process for Producing Xylose from Hydrolysate Using Electrodialysis and Direct Recovery Method - The present invention relates to an environmentally friendly, simple and economic process for producing xylose. The process comprises the steps of: a) countercurrently extracting tropical fruit biomass by hydrolysis with sulfuric acid to obtain a high-concentration xylose extract; b) adjusting the extract to a pH of 1.5-2.5 and decolorizing and filtering the pH-adjusted extract; c) desalting the filtrate in an electrodialysis device; and d) recycling a waste sulfuric acid solution recovered from step c), to step a), and concentrating and directly recovering the desalted filtrate to obtain xylose crystals. | 08-23-2012 |
| 20130220815 | System and Method for Conditioning a Hardwood Pulp Liquid Hydrolysate - A system and method for hardwood pulp liquid hydrolysate conditioning is provided. The system includes a first evaporator, a hydrolysis unit, at least one lignin separation device, a neutralization device, a precipitate removal device, a solvent extraction unit, a lignin removal and recovery unit, an acid and furfural separation and conditioning unit, and an electrodialysis device, which process a quantity of hardwood mix to produce a desalinated solution containing sugar. | 08-29-2013 |
| 204544000 |
Organic material prepared, recovered, or treated | 2 |
| 20100038246 | PROCESS FOR THE TREATMENT OF A STREAM OF SUBSTANCES - A process for a stream of substances containing at least one valuable substance including (A) amino acids, (B) carboxylic acids, and (C) inorganic salts includes: (1) treating the stream by nanofiltration to obtain a retentate enriched with valuable substance (A); (2) treating the permeate of step (1) by electrodialysis in order to obtain a concentrate enriched with valuable substance (C); (3) treating the diluate of step (2) using a system (3) of two stages (4) and (5) which are directly or indirectly interconnected, wherein (4) one treatment is performed by reverse osmosis and (5) one treatment is performed by electrodialysis, whereby a concentrate enriched with valuable substance (B) is obtained, (6) at least a portion of the retentate of step (4) is directly or indirectly supplied to step (5) and (7) at least a portion of the diluate of step (5) is directly or indirectly supplied to step (4). | 02-18-2010 |
| 20140332388 | METHOD FOR PRODUCING HIGH PURITY CRYSTALLINE CARBAMIDE - The invention relates to the method for producing high purity crystalline carbamide. The method comprises the crystallization and drying of carbamide, wherein an aqueous carbamide solution is preheated from +30° C. to +130° C., and thereafter the solution is purified by electrodialysis at a voltage in the range of 400 V-600 V. The technical result is the production of high-purity crystalline carbamide that can be used as an additive in the food industry and as a reagent in laboratory analyses. | 11-13-2014 |
| Entries |
| Document | Title | Date |
|---|
| 20080264793 | Hydrolytically Stable Isoelectric Hydrogel Compositions - An hydrolytically stable isoelectric hydrogel material comprising a single isoelectric compound having a defined pI value from 1 to 12 being incorporated into a hydrogel formed by reacting an oligo- or polyhydroxy compound with the single iso-electric compound and a difunctional or oligofunctional crosslinker, wherein after incorporation of the single isoelectric compound into the hydrogel, the hydrogel material become's an ampholytic material. | 10-30-2008 |
| 20090084681 | MULTILAYER BODY FOR ELECTROPHORESIS AND TRANSFER, CHIP FOR ELECTROPHORESIS AND TRANSFER, ELECTROPHORESIS AND TRANSFER APPARATUS, METHOD OF ELECTROPHORESIS AND TRANSFER, AND METHOD OF MANUFACTURING MULTILAYER BODY FOR ELECTROPHORESIS AND TRANSFER - With the use of a chip ( | 04-02-2009 |
| 20090120796 | ELECTROKINETIC CONCENTRATION DEVICE AND METHODS OF USE THEREOF - The present invention provides a device and methods of use thereof in concentrating a species of interest and/or controlling liquid flow in a device. The methods, inter-alia, make use of a device comprising a fluidic chip comprising a planar array of channels through which a liquid comprising a species of interest can be made to pass with at least one rigid substrate connected thereto such that at least a portion of a surface of the substrate bounds the channels, and an ion-selective membrane is attached to at least a portion of the surface of the substrate, which bounds said channels, or which bounds a portion of a surface of one of said channels. The device comprises a unit to induce an electric field in the channel and a unit to induce an electrokinetic or pressure driven flow in the channel. | 05-14-2009 |
| 20090288953 | APPARATUS AND METHOD OF USING POROUS MATERIAL FOR ANTIGEN SEPARATION, IDENTIFICATION, AND QUANTIFICATION WITH ELECTROPHORESIS TECHNIQUES - An apparatus includes a porous membrane for retaining antigens from a sample as the sample passes through the membrane. The apparatus also includes a first binding region within the membrane. The first binding region includes antibodies associated with a first antigen of interest. At least some of the antigens retained in the membrane are brought into contact with the first binding region by applying an electrophoresis field across the membrane. The porous membrane could also include an electrophoresis buffer. A presence of the first antigen of interest could be detected by exposing the first binding region to a chemiluminescent reagent, and a quantity of the first antigen of interest could be determined by performing a chemiluminescent assay on the binding region. | 11-26-2009 |
| 20100059377 | SYSTEM AND METHOD FOR RECOVERY OF CO2 BY AQUEOUS CARBONATE FLUE GAS CAPTURE AND HIGH EFFICIENCY BIPOLAR MEMBRANE ELECTRODIALYSIS - A system and method for recovery of CO | 03-11-2010 |
| 20100147689 | METHOD FOR MODIFYING SURFACE OF ALUMINUM OXIDE AND ELECTROOSMOSIS PUMP AND ELECTRIC POWER GENERATOR USING MODIFIED ALUMINUM OXIDE MEMBRANE - The invention provides a method for modifying a surface of aluminum oxide. Aluminum oxide is contacted with a hydrogen peroxide aqueous solution having 5-70 volume % of hydrogen peroxide for 20 minutes to 3 hours. The invention also provides an electroosmosis pump and electric power generator having a porous aluminum oxide membrane modified by the above method. | 06-17-2010 |
| 20100163413 | Membrane Treatment Method and Membrane Treatment Apparatus for Ballast Water Using Membrane Module - [Problem] To provide a membrane treatment method and a membrane treatment apparatus for ballast water using a membrane module, which are capable of inhibiting the formation of scale on the membrane surface to reduce fouling, using a simple installation. | 07-01-2010 |
| 20100264032 | INDUCED-CHARGE ELECTROKINETICS WITH HIGH-SLIP POLARIZABLE SURFACES - This invention provides devices and apparatuses comprising the same, for fast pumping and mixing of relatively small volumes of electrolytes and ionic fluids and materials suspended thereby. Such devices utilize nonlinear induced-charge electro-osmosis as a primary mechanism for driving fluid flow. Such devices comprise a polarizable surface, which is incorporated in the electrodes or pumping elements of the devices as well as a material, which promotes hydrodynamic slip at a region proximal thereto, when the device is subjected to non-linear electro-osmotic flow. Examples of such materials are provided. This invention also provides nanoparticles and microparticles incorporating such materials to enhance nonlinear induced-charge electrophoretic motion. Methods of use of the devices and particles of this invention are described. | 10-21-2010 |
| 20110120870 | METHOD AND APPARATUS FOR TREATING A FLUID - A fluid treatment system is disclosed wherein a fluid is passed through a membrane and is treated with an electrical treatment device. The electrical treatment device may include a wire wrapped about a fluid conduit and a control unit. The electrical treatment device may include a first electrode, a second electrode, and a control unit. The first electrode and the second electrode may be in contact with the fluid. | 05-26-2011 |
| 20110253537 | Device and Method for Electrochemical Treatment - The present invention relates to a method and device for the electrochemical treatment of at least one component, which has a treatment chamber and at least one feed unit for an electrolyte to the treatment chamber, and at least one way for setting the pH value of the electrolyte being provided before the treatment chamber. | 10-20-2011 |
| 20120145546 | ALL-ELECTRIC COAGULANT GENERATION SYSTEM - A coagulation generating system that combines the advantages of conventional and electrocoagulation. In the coagulation generating system electro-coagulation is performed on an input (e.g., salt/brine) solution to generate a concentrated coagulant solution, which is then added to the source water in the same way as a standard stored chemical coagulant. | 06-14-2012 |
| 20120152744 | ELECTRODIALYTIC SEPARATION OF GAS FROM AQUEOUS CARBONATE AND BICARBONATE SOLUTIONS - A process for producing a gas using an electrodialysis apparatus includes flowing at least two solutions and an electrode solution into the apparatus, pressurizing the apparatus at a stack pressure, applying a voltage to the apparatus's electrodialysis stack so a dissolved gas is generated in the second solution, flowing the second solution out of the apparatus, regenerating the gas out of the second solution, and collecting the gas. A process for generating a product, like a gas, liquid, or supercritical fluid, using an electrodialysis apparatus includes flowing at least two solutions and an electrode solution into the apparatus, adjusting the temperature and pressure so the product will be generated from the second solution, applying a voltage to the electrodialysis stack of the apparatus so that the product is generated in the second solution, flowing the second solution out of the apparatus, and regenerating the product from the second solution. | 06-21-2012 |
| 20120168309 | ELECTROWETTING AND ELECTROFLUIDIC DEVICES WITH LAPLACE BARRIERS AND RELATED METHODS - Electrowetting and electrofluidic devices and methods. The device includes a hydrophobic channel formed between first and second substrates and a polar fluid and a non-polar fluid contained in the channel. An electrode with a dielectric layer is electrically connected to a voltage source. A Laplace barrier within the hydrophobic channel defines a fluid pathway that is open to the movement of the polar fluid within the channel. The polar fluid moves to a first position when the voltage source is biased at a first voltage that is less than or equal to a threshold voltage. The polar fluid moves to a second position when the voltage source is biased with a second voltage that is greater than the first voltage. | 07-05-2012 |
| 20120186979 | DEVICE FOR ELECTRO MEMBRANE EXTRACTION - A device for electro membrane extraction has a syringe holder adapted to hold a syringe having an acceptor solution, and a sample vial holder adapted to hold a sample vial having a vial cap, where the vial cap includes an inside funnel to be equipped with a prewetted hollow fiber membrane having a tube like shape sealed at the end opposite the funnel and forming a lumen, and steering guides for at least two electrodes, a first electrode to be immersed in a donor solution placed in the sample vial, a second electrode to be immersed, through the funnel in the vial cap, into the lumen of the hollow fiber membrane, and a positioning device for sliding the first electrode in and out of the donor solution in the sample vial and for sliding the second electrode in and out of the lumen of the hollow fiber membrane. | 07-26-2012 |
| 20130020200 | DETECTING, MEASURING AND CONTROLLING PARTICLES AND ELECTROMAGNETIC RADIATION - A method is provided for detecting, measuring or controlling particles and/or electromagnetic radiation, comprising providing a deformable material containing a deformable aperture defining a path for particles or radiation, adjusting the deformable aperture to a prescribed geometry and/or size by deforming the deformable material to change at least one of the parameters of the path defined by the deformable aperture, and causing the particle or radiation to be detected, measured or controlled to enter the deformable aperture. The method includes the step of monitoring the geometry and/or size of the deformable aperture and controlling the adjustment of the size of the deformable aperture in response to such monitoring. The required apparatus is easily fabricated from inexpensive materials. Furthermore the deformable aperture can be tuned to the appropriate geometry post fabrication, and the ability to adjust the aperture geometry renders it capable of discriminating a plurality of differently sized particles. | 01-24-2013 |
| 20130098765 | APPARATUS AND A METHOD FOR THE DEHYDRATATION TREATMENT OF WASTE SLUDGE - An apparatus for treating waste sludge includes an outer container casing, internally hollow, an inner body coaxial with the outer casing, a compacting and dehydrating chamber, inside the outer container casing and along which sludge to be treated runs, an inlet zone for supplying sludge to the chamber, an outlet zone for unloading treated sludge, movement elements for the sludge, cooperating with the inner body, which promote compaction and advancement of the sludge from the inlet zone to the outlet zone; a container net connected to a negative pole of a control unit to form a cathode, and the inner body connected to a positive pole to form an anode. A method of treating sludge includes the promoting the continuous advancement and compaction of sludge inside a compression chamber between the anode and cathode, and establishing a difference in potential in order to subject the sludge to an electrical field. | 04-25-2013 |
| 20130146461 | Droplet Actuator Loading and Target Concentration - A droplet actuator and method of providing a droplet comprising an target substance on the droplet actuator, and including discrete flow and continuous flow functionality. Discrete flow function is controlled by electrodes arranged for conducting droplet operations on a substrate surface. The continuous flow function includes a fluid path arranged for flowing a fluid therethrough. The discrete flow and continuous flow functions may be by a barrier, including a second fluid path through the barrier. The continuous flow function may include a capture surface comprising a component having an affinity for the target substance. Methods of the invention may include flowing a fluid comprising the target substance through the fluid path; capturing the target substance on the capture surface; and forming a droplet in the discrete flow region via the second fluid path and the electrodes comprising the captured target substance. | 06-13-2013 |
| 20130248367 | MOLECULAR SEPARATION DEVICE - A molecular separation device includes a chamber having an inlet and an outlet through which flows an aqueous suspension and a porous separation membrane positioned in the chamber substantially orthogonally to the flow of the aqueous suspension. An electrical charging device connects to the separation membrane to apply a periodic electric charge so as to collect components blocked by the porous separation membrane. Related methods are also disclosed. | 09-26-2013 |
| 20130292247 | METHOD AND MICROSYSTEM FOR THE DETERMINATION OF CLAUSIUS-MOSSOTTI FACTORS FOR COLLOIDAL PARTICLES - The invention concerns a method for determining Clausius-Mossotti Factors ‘CMF’ of a solution of colloidal particles, comprising the following steps:
| 11-07-2013 |
| 20130327643 | Expulsion of trapped matter - Herein is described a process method and device used for nonporous, or porous media, that is metallic, ceramic, or of rock based compositions, such as geologic materials which may house inclusions such that under electromigration, thermophoresis, electrophoresis, magnetophoresis, electromagnetics, leads to combined advection, convection, electro-magnetic kinetics, osmosis, and diffusion. Meaning that under the influence of a solvent, cell, enclosure, contacts, and second enclosure material, yields the expulsion of trapped housed matter such as kerogen, oil, gas condensates, water-oil mixtures, hydrocarbons, terpenes, organic compounds, methane, inorganic material, solvent, or other organic material(s), or oil-gas-water type natural resource material. This is a simple environmental friendly method by which to expel housed and/or trapped media that is then released for collection, storage, and removal. | 12-12-2013 |
| 20130334048 | NANOPORE DEVICE WETTING - A method for wetting a nanopore device includes filling a first cavity of the nanopore device with a first buffer solution having a first potential hydrogen (pH) value, filling a second cavity of the nanopore device with a second buffer solution having a second pH value, applying a voltage in the nanopore device, and measuring a current in the nanopore device, the current having a current path partially defined by the first cavity, the second cavity, and an orifice communicative with the first cavity and the second cavity. | 12-19-2013 |
| 20140021052 | ELECTRODIALYSIS UNIT FOR WATER TREATMENT - An electrodialysis unit | 01-23-2014 |
| 20140054173 | ELECTRODIALYSIS UNIT FOR WATER TREATMENT - An electrodialysis unit | 02-27-2014 |
| 20140076728 | CONCENTRATION POLARIZATION IDENTIFICATION AND MITIGATION FOR MEMBRANE TRANSPORT - Disclosed herein is a membrane separation apparatus with reduced concentration polarization and enhanced permeate flux. Also disclosed is a method for separating permeate from retentate in a fluid using the disclosed membrane separation apparatus. Also disclosed is a method for inhibiting or preventing concentration polarization of a permeable membrane used in membrane separation. | 03-20-2014 |
| 20140090981 | FLOW CONTROL METHOD AND APPARATUSES - Aspects of the present disclosure are directed to the flow of analytes, particles or other materials. As consistent with one or more embodiments described herein, an apparatus includes a membrane having one or more pores in a membrane. First and second electrodes facilitate electrophoretic flow of analytes through the pore, and a third electrode controls movement of the particles in the pore by modulating the shape of an electric double layer adjacent sidewalls of pore. This modulation controls the strength of an electroosmotic field that opposes the electrophoretic flow of the analytes via the pore | 04-03-2014 |
| 20140131206 | CAPACITIVE ELECTROKINETIC DEWATERING OF SUSPENSIONS AND SOILS - An apparatus and process for electrophoretic and electro-osmotic densification, decontamination and dewatering of suspensions includes the use of high electrical capacitance electrodes for capacitive generation of electric fields. Polarity reversals between the capacitor electrodes prevent faradic electrolysis and corrosion reactions at the electrodes, and water wettable, flexible linings for the electrodes, having drainage and filtering capabilities, can also be used as interceptor drains positioned adjacent and in full electric contact with the electrodes, as well as within the suspension as flow path dividers. | 05-15-2014 |
| 20140318968 | NANOPORE SENSOR FOR DETECTING MOLECULAR INTERACTIONS - A nanosensor for detecting molecule characteristics includes a membrane having an opening configured to permit a charged carbon nanotube to pass but to block a molecule attached to the carbon nanotube. The opening is filled with an electrolytic solution. An electric field generator is configured to generate an electric field relative to the opening to drive the charged carbon nanotubes through the opening. A sensor circuit is coupled to the electric field generator to sense current changes due to charged carbon nanotubes passing into the opening, and to bias the electric field generator to determine a critical voltage related to a force of separation between the carbon nanotube and the molecule. | 10-30-2014 |
| 20140326603 | CARBON DIOXIDE PERMEATION DEVICE AND METHOD OF TRANSPORTING CARBON DIOXIDE - The carbon dioxide permeation device in accordance with the present invention includes a first gas diffusion electrode, a second gas diffusion electrode, an electrolyte membrane which is between the first gas diffusion electrode and the second gas diffusion electrode, and a DC power source. The carbon dioxide permeation device accelerates absorption of carbon dioxide into the electrolyte membrane from gas in a vicinity of the first gas diffusion electrode so as to decrease a carbon dioxide concentration of the gas in the vicinity of the first gas diffusion electrode, and accelerates emission of carbon dioxide from the electrolyte membrane to gas in a vicinity of the second gas diffusion electrode by causing an oxidation reaction of water in the electrolyte membrane so as to enrich carbon dioxide in the gas in the vicinity of the second gas diffusion electrode. | 11-06-2014 |
| 20140374255 | SINGLE PARTICLE ANALYZER AND SINGLE PARTICLE ANALYSIS METHOD - According to one embodiment, provided is a single particle analyzing device including a measuring vessel, first and second chambers in the vessel defined by an insulating membrane, a pore opening in the membrane to connect the chambers, and first and second electrodes in the chambers. Electric current flows between the electrodes through the pore. Electrical characteristics are measured during migration of the target from the first chamber to the second chamber to measure the size and shape of the target. (a) t | 12-25-2014 |
| 20150075990 | ION PUMP - A membrane structure is provided. The membrane structure may include: a membrane; at least one hole extending into the membrane configured to receive a fluid. The membrane may include a plurality of electrodes arranged to provide one or more electric fields to control a movement of the fluid within the at least one hole. | 03-19-2015 |
| 20150136606 | DEVICES AND METHODS FOR ELECTRIC FIELD DRIVEN ON-DEMAND SEPARATION OF LIQUID-LIQUID MIXTURES - Devices and methods for electric field driven on-demand separation of liquid-liquid mixtures are provided. For example, methods for separating liquid-liquid mixtures, such as free oil and water, oil-in-water emulsions and water-in-oil emulsions, are provided that have separation efficiencies up to about 99.9%. The liquid-liquid mixture is contacted with a separator membrane assembly comprising a separator membrane formed of a porous oleophobic (or superoleophobic) material and an electrically conductive member. An electrical potential is applied across the porous oleophobic (or superoleophobic) material of the separator membrane to facilitate passage and separation of at least a portion of the first component through the separator membrane. Separation devices and such separator membrane assemblies are also provided. | 05-21-2015 |
| 20160084796 | FLOW ASSAY WITH AT LEAST ONE ELECTRICALLY-ACTUATED FLUID FLOW CONTROL VALVE AND RELATED METHODS - Embodiments disclosed herein are directed to flow assays including at least one electrically-actuated valve configured to control fluid flow. Methods of operating such flow assays are also disclosed. | 03-24-2016 |
| 20160085240 | Droplet Actuators that Include Molecular Barrier Coatings - Droplet actuators that include molecular barrier coatings are provided. The molecular barrier coating may be provided atop the conductive layer of the top substrate, atop the droplet operations electrodes of the bottom substrate, or both. Where the conductive layer of the top substrate and/or the droplet operations electrodes of the bottom substrate are formed of an electrically conductive organic polymer, such as poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS), the molecular barrier coating helps to immobilize the contents of the PEDOT:PSS layer. Further, the molecular barrier coating reduces, preferably entirely eliminates, moisture from seeping into the electrically conducting organic polymer. Methods of conducting droplet operations using the disclosed droplet actuators are also provided. | 03-24-2016 |
| 20160129403 | NOVEL NANOSTRUCTURED MEMBRANE SEPARATORS AND USES THEREOF - Ultrahigh sensitive methods useful for separation, preconcentration, and detection of heavy metal ions in aqueous media are provided. Also provided are novel nanostructure separators useful for separation, preconcentration, and detection of heavy metal ions in aqueous media. | 05-12-2016 |
| 20170232404 | ELECTROOSMOTIC MEMBRANE | 08-17-2017 |
