| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 205341000 | Utilizing AC or specified wave form other than pure DC | 23 |
| 20090134038 | Method of Chemical Reactions Conduction and Chemical Reactor - In the method at least two electrodes ( | 05-28-2009 |
| 20090205971 | METHOD AND APPARATUS FOR PRODUCING COMBUSTIBLE FLUID - This invention relates to a method and apparatus for producing combustible fluid at an efficiency rate of above 65%. The apparatus | 08-20-2009 |
| 20090229991 | DEVICE AND METHOD FOR PRODUCING A UNIFORM TEMPERATURE DISTRIBUTION IN SILICON RODS DURING A PRECIPITATION PROCESS - The present invention relates to a device for supplying current to at least one silicon rod ( | 09-17-2009 |
| 20110068013 | METHOD AND APPARATUS FOR MANUFACTURING METAL NANO-PARTICLES USING ALTERNATING CURRENT ELECTROLYSIS - Disclosed herein are a method and apparatus for preparing metal nanoparticles using alternating current (AC) electrolysis, in which the yield of metal nanoparticles obtained can be greatly improved by maintaining the concentrations of a reducing agent and a dispersing agent at constant levels in proportion to the intensity of an electric current during the production of the metal nanoparticles. The method for preparing metal nanoparticles comprises the steps of: dissolving an electrolyte and a dispersing agent in pure water in a reactor to prepare an electrolytic solution; placing first and second electrodes apart from each other in the electrolytic solution in the reactor, the electrodes being made of the same material as metal nanoparticles to be obtained; applying alternating current at the first and second electrodes to ionize the metal of the first and second electrodes in the electrolytic solution; and introducing into the electrolytic solution a reducing agent so as to maintain the reducing agent at a constant level according to the concentration of metal ions produced, thereby reducing the metal ions to obtain the metal nanoparticles. | 03-24-2011 |
| 20110114499 | METHOD FOR PRODUCING GRAPHENE - To provide a simple process for producing graphene. | 05-19-2011 |
| 20110233067 | ELECTROCHEMICAL PROCESSING OF FLUIDS - An electrochemical process and device for the controlled and uniform heating of electrically-conductive fluids, the process or device having at least one reactor and at least one power source with at least one electrode and at least one additional conductive material for direct heating of the fluid and for producing electrochemical changes of the fluid to result in at least one property change of the fluid and at least one product. | 09-29-2011 |
| 20120318678 | APPARATUS AND METHOD FOR PRODUCING METAL NANOPARTICLES USING GRANULE-TYPE ELECTRODES - An apparatus for producing metal nanoparticles using granule type electrodes, in which the metal nanoparticles having a uniform shape and nano-size are continuously mass-produced at low cost by filling metal granules in a pair of electrode housings spaced by a certain interval and electrolyzing the granules with alternating-current voltage. The apparatus includes a reaction vessel containing an electrolytic solution, first and second electrodes that are formed by filling a number of granules or flakes, in first and second electrode housings that are spaced by a gap in the reaction vessel, and a power supply that applies an alternating-current power between the first and second electrodes for electrolysis reaction, in which the first and second electrode housings comprise a number of holes or slits on at least two surfaces facing each other so that metal ions dissolved from the first and second electrodes can be discharged depending on the electrolysis reaction. | 12-20-2012 |
| 20120325674 | METHOD FOR IMPROVING THE PERFORMANCE OF NICKEL ELECTRODES - The invention relates to a method for improving the performance of nickel electrodes in alkali chloride electrolysis by adding water-soluble platinum compounds to the catolyte. | 12-27-2012 |
| 20130161199 | Production of Graphene - An apparatus for large-scale production of graphene and graphene oxide is provided. The apparatus includes a first electrode, a second electrode, an electrobath, a power supply, and a module for filtering and separating the graphene products. Large amounts of graphene and graphene oxide can be produced rapidly using electrochemical exfoliation. High-quality graphene and graphene oxide can be produced under the room temperature in a simple and cost-effective way. | 06-27-2013 |
| 20130233720 | EXTRACTION OF METALS - The present invention provides a substantially inert environment within a cathode chamber that is capable of generating a metallic element M from a metal ion M | 09-12-2013 |
| 20130256148 | SILVER CATHODE ACTIVATION - The selective electrochemical reduction of halogenated 4-aminopicolinic acids is improved by activating the cathode at a final potential from about +1.0 to about +1.8 volts. | 10-03-2013 |
| 20140097093 | Transformerless On-Site Generation - Methods and apparatuses for electrolysis that does not require the use of a transformer to operate. The apparatus comprises one or more electrolytic cells which comprise the number of intermediate electrodes sufficient to enable the cell or cells to operate at the rectified line voltage without any need for voltage regulation, or near the rectified line voltage with only some voltage regulation, such as less than 20% of the rectified line voltage. Such regulation is achieved by using a buck or boost converter rather than a transformer, and can be varied to accommodate fluctuations in the line voltage and/or conductivity of the electrolyte, or varied to produce different chemistries in the same apparatus. | 04-10-2014 |
| 20140116887 | ELECTROCHEMISTRY AND ELECTROGENERATED CHEMILUMINESCENCE WITH A SINGLE FARADAIC ELECTRODE - Described herein is an apparatus comprising an electrochemical cell that employs a capacitive counter electrode and a faradaic working electrode. The capacitive counter electrode reduces the amount of redox products generated at the counter electrode while enabling the working electrode to generate redox products. The electrochemical cell is useful for controlling the redox products generated and/or the timing of the redox product generation. The electrochemical cell is useful in assay methods, including those using electrochemiluminescence. The electrochemical cell can be combined with additional hardware to form instrumentation for assay methods. | 05-01-2014 |
| 20140367272 | Hydrolysis system and method for a vehicle engine - A hydrolysis system for a vehicle engine includes an electrolysis unit having a plurality of spaced, generally parallel, conductive plates and an electrolyte between the plates that produce fuel gas including hydrogen and oxygen by electrolysis; a reservoir that receives the fuel gas from the electrolysis unit and stores the fuel gas and electrolyte; an electric pump that pumps the electrolyte from the reservoir to the electrolysis unit; a pulse width modulator that provides DC power to the conductive plates and to the pump; a dryer having a filter that removes water from the fuel gas; an expansion tank having an interior cavity that expands the fuel gas and a conduit within the cavity that heats the fuel gas with circulating hot water; and a spray tube that outputs the fuel gas. Methods include preparing and using the hydrolysis system. | 12-18-2014 |
| 20150345035 | METHOD AND APPARATUS FOR DECOMPOSING NITROGEN OXIDE - A method for decomposing nitrogen oxide includes: contacting a gas stream comprising nitrogen oxide with a device, the device comprising: a first electrode, an opposite second electrode, an electrolyte between the first and the second electrodes, and a power supply; and applying in a pulse mode an electrical current from the power supply to the first and the second electrodes to decompose nitrogen oxide. An associated apparatus is also described. | 12-03-2015 |
| 20160376718 | METHOD FOR ELECTROCHEMICALLY ASSISTED UPGRADE OF HYDROCARBONS - A method for upgrading a hydrocarbon using active hydrogen, includes the steps of: feeding a hydrocarbon to a two-compartment cell having a first compartment, a second compartment and a membrane dividing the compartments, wherein the hydrocarbon is fed to the first compartment which functions as a chemical compartment; feeding a source of hydrogen to the second compartment which functions as an electrochemical compartment; and pulsing an electric current or cathodic current across the second compartment. | 12-29-2016 |
| 205342000 | Reversing nonpulsed current or voltage | 7 |
| 20100065436 | METHOD OF EXTRACTING PLATINUM GROUP METALS FROM WASTE CATALYSTS THROUGH ELECTROCHEMICAL PROCESS - A method of extracting platinum group metals from waste catalysts through an electrochemical process is disclosed. The extracting method includes positioning the waste catalysts between both electrodes in an electrolytic cell, leaching the platinum group metals as regularly changing polarities of the electrodes to each other, and precipitating the platinum group metals on a cathode by circulating the electrolyte from an anode to a cathode. According to the method, the platinum group metals can be extracted with high efficiency and high yield. Also, the extracting process is simplified to remarkably reduce costs required to extract the platinum group metals. | 03-18-2010 |
| 20110174633 | FLOW-THROUGH-RESIN-IMPREGNATED MONOLITHIC GRAPHITE ELECTRODE AND CONTAINERLESS ELECTROLYTIC CELL COMPRISING SAME - An electrolytic cell is provided that can include: a first electrode plate including a first surface that can include a graphite material; a second electrode plate including a second surface that can include a graphite material opposing the first surface; an electrolytic reaction zone between the first surface and the second surface; and an inlet to and an outlet from the electrolytic reaction zone. The first electrode plate and the second electrode plate can include resin-impregnated monolithic graphite plates. The first electrode plate and the second electrode plate can form opposite internal walls of a chamber for the electrolytic reaction and thus can be provided without a container for containing the electrode plates. Methods are also provided for flow-through-resin-impregnating porous, monolithic graphite plates to form electrode plates. | 07-21-2011 |
| 20130118908 | MEMBRANE ELECTRO - CATALYTIC SYSTEM AND PROCESS FOR OBTAINING FUEL GAS FROM WATER - An electro-catalytic membrane system for preparing fuel gas from water operates at normal levels of pressure and temperature. The system includes a high frequency power source, a power supply system, a programmable control unit, an electro-catalytic membrane module, and a module for processing the fuel gas. The electro-catalytic membrane module includes metallic electrodes in a concentric arrangement. The space between the concentric electrodes includes granular carbon and metallic particles. A fixed membrane is arranged at a lower end of the space while a mobile membrane is arranged at an upper end of the space. The electro-catalytic membrane module is further provided with sensors for measuring process parameters, conduits, and valves for supplying and removing liquids. A system for cooling the metallic electrodes is also provided. | 05-16-2013 |
| 20140014525 | ALTERNATING VOLTAGE ELECTROCHEMICAL REFORMING - A method is taught of introducing an alternating voltage between a first electrode and a second electrode in a mixture comprising a depolarizing agent. The method then alternates between forming hydrogen gas at the first electrode while simultaneously oxidizing a depolarizing agent at the second electrode and forming hydrogen gas at the second electrode while simultaneously oxidizing the depolarizing agent at the first electrode. | 01-16-2014 |
| 20140076734 | METHOD AND ELECTROCHEMICAL DEVICE FOR LOW ENVIRONMENTAL IMPACT LITHIUM RECOVERY FROM AQUEOUS SOLUTIONS - An efficient and low environmental impact method is disclosed for the recovery of lithium from aqueous solution, for example, brines from high altitude salt lakes. The method comprises the use of an electrochemical reactor with electrodes which are highly selective for lithium, where lithium ions are inserted in the crystal structure of manganese oxide in the cathode, and extracted from the crystal structure of manganese oxide in the anode. Also disclosed are three-dimensional carbon electrodes embedded in manganese oxides formed by impregnating a porous support, for example a carbon felt, with a manganese oxide/carbon black slurry. | 03-20-2014 |
| 20140174942 | Electrochemical System and Method for On-Site Generation of Oxidants at High Current Density - An electrochemical system and method are disclosed for On Site Generation (OSG) of oxidants, such as free available chlorine, mixed oxidants and persulfate. Operation at high current density, using at least a diamond anode, provides for higher current efficiency, extended lifetime operation, and improved cost efficiency. High current density operation, in either a single pass or recycle mode, provides for rapid generation of oxidants, with high current efficiency, which potentially allows for more compact systems. Beneficially, operation in reverse polarity for a short cleaning cycle manages scaling, provides for improved efficiency and electrode lifetime and allows for use of impure feedstocks without requiring water softeners. Systems have application for generation of chlorine or other oxidants, including mixed oxidants providing high disinfection rate per unit of oxidant, e.g. for water treatment to remove microorganisms or for degradation of organics in industrial waste water. | 06-26-2014 |
| 20160251763 | Electrolytic Cell Equipped With Concentric Electrode Pairs | 09-01-2016 |
