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| Number | Title | Issue Date |
| 7736776 | Method and system for removal of ammonia from wastewater by electrolysis A method and system are described to treat ammonia-containing wastewater or process waters. Sewage containing human or animal waste and certain process liquids, typically water, contains high levels of nitrogen in the form of ammonia. An electro-chemical method to e... | 06/15/2010 |
| 7666534 | Electro-catalytic oxidation device for removing carbon from a fuel reformate An electro-catalytic oxidation device (ECOD) for the removal of contaminates, preferably carbonaceous materials, from an influent comprising an ECOD anode, an ECOD cathode, and an ECOD electrolyte. The ECOD anode is at a temperature whereby the contaminate collects ... | 02/23/2010 |
| 7563526 | Fuel cell system and method for removal of water from fuel cells A fuel cell system is provided which generates electricity by supplying fuel gas and oxidant gas to a fuel cell stack comprising a fuel cell stack, a DC power supply, and a controller. The DC power supply comprises at least one of a generator and battery. The contro... | 07/21/2009 |
| 7476456 | Submarine boat A submarine boat provided with a fuel cell (30) for power generation by supply of hydrogen and oxidizing agent, a hydrogen generating device (10) for generating a gas containing hydrogen to be supplied to the fuel cell, and propelling device driven by ... | 01/13/2009 |
| 7442455 | Apparatus and method for protecting fuel cell A memory unit stores maps of predetermined determination threshold values for detection values detected by a hydrogen sensor according to an operating state of a fuel cell such as a difference in pressure between reaction gases at an anode and a cathode, supply pres... | 10/28/2008 |
| 7420027 | Method for producing a borohydride A method for producing a borohydride is described and which includes the steps of providing a source of borate; providing a material which chemically reduces the source of the borate to produce a borohydride; and reacting the source of borate and the material by sup... | 09/02/2008 |
| 7419734 | Method and apparatus for fuel cell systems An array of fuel cell systems are electrically couplable in series and/or parallel combinations to provide a variety of output powers, output current and/or output voltages. The fuel cell systems are “hot swappable” and redundant fuel cell systems may automatica... | 09/02/2008 |
| 7410711 | Fuel cell output characteristic estimation apparatus and output characteristic estimation method, fuel cell system and vehicle having the same, and fuel cell output control method and data storage medium An output characteristic of a fuel cell is estimated by detecting an output current of the fuel cell and a voltage between terminals of the fuel cell, and then estimating the output characteristic of the fuel cell on the basis of the detected output current and the ... | 08/12/2008 |
| 7410714 | Unitized regenerative fuel cell system A Unitized Regenerative Fuel Cell system uses heat pipes to convey waste heat from the fuel cell stack to the reactant storage tanks. The storage tanks act as heat sinks/sources and as passive radiators of the waste heat from the fuel cell stack. During charge up, i... | 08/12/2008 |
| 7399392 | Electrochemical reformer and fuel cell system An electrochemical reformer 1 using reactant feed structures having both hydrophilic and hydrophobic regions to provide mechanisms for the wicking of liquid reactants into reformer 1 and for the separation and removal of gaseous products from reformer 1. The electri... | 07/15/2008 |
| 7393440 | Hydrogen generation system The present invention provides a system for generating hydrogen gas in an aqueous solution based electrolytic or galvanic cell wherein the cathode is made from aluminum or an aluminum alloy. In a preferred arrangement the cell is a galvanic cell and cathode is made ... | 07/01/2008 |
| 7390587 | Fuel cell system with load management A fuel cell system having partial and/or total redundancy of at least one operational component, such as a redundancy of fuel cell stacks and/or fuel processors. In some embodiments, the fuel cell system includes a plurality of fuel cell stacks adapted to deliver th... | 06/24/2008 |
| 7374591 | Method for starting a gas generating system A method for starting a gas generating system serving to generate a hydrogenous gas used for operating a fuel cell. The gas generating system includes: devices for converting starting materials into the hydrogenous gas; devices for conditioning at least a portion of... | 05/20/2008 |
| 7364810 | Combined energy storage and fuel generation with reversible fuel cells An electrochemical system includes a reversible fuel cell system which generates electrical energy and reactant product from fuel and oxidizer in a fuel cell mode and which generates the fuel and oxidant from the reactant product and the electrical energy in an elec... | 04/29/2008 |
| 7352074 | System for producing hydrogen making use of a stream of water A system for producing hydrogen from water, making use of a stream of water such as a gulf stream or tidal stream, includes a number of submerged modules, each having a turbine that can be driven by the stream of water. The turbine is coupled to a generator for gene... | 04/01/2008 |
| 7348085 | Fuel cell installation A leak in a fuel cell module can allow hydrogen and/or oxygen to escape from the fuel cell module, thereby creating a high risk of fire or explosion. This problem is addressed by providing a fuel cell installation with a fuel cell module that is enclosed in a gas-ti... | 03/25/2008 |
| 7344788 | Starting a fuel cell system using ambient air and a low voltage blower A mechanization of a fuel cell system and a method of operating the same is provided which simplifies the start-up of the fuel cell system. The fuel cell system can be started up without using any battery derived high voltage power to drive a high voltage compressor... | 03/18/2008 |
| 7341806 | Battery having carbon foam current collector A battery cell includes a negative current collector and at least one carbon foam positive current collector disposed within the cell such that the negative current collector at least partially surrounds the at least one carbon foam positive current collector. An in... | 03/11/2008 |
| 7338586 | Vibratingly stirring apparatus, and device and method for processing using the stirring apparatus An insulated vibration-stirring apparatus comprising a vibration generating means containing a vibration motor and a vibrating member attached to that motor, and a vibrating rod attached by an installation piece to allow vibration linked with the vibration generatin... | 03/04/2008 |
| 7316853 | Airbreathing fuel cell An airbreathing fuel cell comprising a power generating cell stack constituted by laminating a plurality of cell parts together, which cell part comprises a polymer electrolyte membrane, an oxygen electrode and a fuel electrode, which are provided on both sides of t... | 01/08/2008 |
| 7309535 | Air breathing fuel cell having bi-cell unit cells The present invention discloses a fuel cell having at least one bi-cell. The bi-cells may be stacked in series to achieve a desired power output. Each bi-cell is a unit cell comprising two hydrogen electrodes, two air/oxygen electrodes, two electrolyte distributors ... | 12/18/2007 |
| 7294424 | Solid-oxide fuel cell assembly having simplified arrangement of current collectors A solid-oxide fuel cell stack having a plurality of fuel cells connected in series and disposed as two stacks side-by-side in head-to-tail configuration, connected in series across one end and having cathode and anode current collectors mounted side-by-side on a sta... | 11/13/2007 |
| 7285350 | Enhanced solid oxide fuel cell systems Enhanced high temperature fuel cell systems, such as solid oxide fuel cell systems and molten carbonate fuel cell systems are disclosed. Embodiments of the disclosure include solid oxide and molten carbonate fuel cell systems incorporating gas separation apparati fa... | 10/23/2007 |
| 7282285 | Method and apparatus for the operation of a cell stack assembly during subfreezing temperatures A cell stack assembly (102) coolant system comprises a coolant exhaust conduit (110) in fluid communication with a coolant exhaust manifold (108) and a coolant pump (112). A coolant inlet conduit (120) enables transportation of the... | 10/16/2007 |
| 7282294 | Hydrogen storage-based rechargeable fuel cell system and method A dual mode electrochemical system comprises a first electrode capable of storing hydrogen, a second electrode, a substantially electrically insulating and substantially ionically conducting membrane interposed therebetween and an electrolyte. In a first mode, upon ... | 10/16/2007 |
| 7279245 | System for removal of inerts from fuel cell reactants An electrical power plant that includes a fuel cell and at least one recycle system for recycling at least a first reactant, for reuse by the fuel cell. The fuel cell discharges a first exit stream that includes the first reactant and inerts. The recycle system comp... | 10/09/2007 |
| 7273044 | Hydrogen fuel system for an internal combustion engine A hydrogen fuel system for an internal combustion engine includes an electrolyzer for generating hydrogen and oxygen gases. The engine exhaust may be recycled through the electrolyer where it is converted to hydrogen and oxygen. A water reservoir in fluid communicat... | 09/25/2007 |
| 7270902 | Apparatus for controlling electric power from fuel cell A target electric power operating part (2) operates a target electric power of a fuel cell. A running target point operating part (3) operates targets of both pressure of gas and mass flow rate of gas. A running point controlling part (4) contro... | 09/18/2007 |
| 7264962 | Enzymatic cascade bioreactor Disclosed is an apparatus and method for continuously converting sucrose to β-D-glucose. The method comprises a three stage enzymatic reactor in which an aqueous solution of sucrose is first converted into a solution of fructose and α-D-glucose by passing it throu... | 09/04/2007 |
| 7255949 | Systems and methods to generate hydrogen and electrical power in a reversible compound fuel cell A hydrogen and electrical power generating system that includes a hydrogen source to generate a mixture having hydrogen gas, a ceramic fuel cell to generate power from a first portion of the mixture and a hydrogen separator to generate purified hydrogen gas from a s... | 08/14/2007 |
| 7252900 | Combination fuel cell and ion pump, and methods and infrastructure systems employing same A combination fuel cell and hydrogen or oxygen pump includes an electrochemical cell comprising an anode inlet for receiving fuel, an anode outlet for exhausting fuel, a cathode inlet for receiving oxidant, a cathode outlet for exhausting oxidant, and first and seco... | 08/07/2007 |
| 7247400 | Fuel cell and method of controlling the same A polymer solid electrolyte type fuel cell includes an internal electrode in an ion exchange membrane made of a proton conductor, a voltage application device provided between the internal electrode and one of a fuel electrode and an oxidizer electrode. Applying vol... | 07/24/2007 |
| 7244524 | Method and system for balanced control of backup power A power system comprising: a primary power source in electrical communication with a electrolysis cell, wherein the electrolysis cell is in electrical communication with a bus; a secondary power source in electrical communication with the bus, wherein the secondary ... | 07/17/2007 |
| 7245034 | Power system for a telecommunications facility An energy generating system for a telecommunications facility includes a hydrogen fuel supply system. The hydrogen fuel supply system includes a source of liquid hydrogen which uses a high pressure expansion tank along with additional storage tanks. The system also ... | 07/17/2007 |
| 7241522 | Regenerative electrochemical cell system and method for use thereof An exemplary embodiment of a regenerative electrochemical cell system, comprises: a fuel cell module, an electrolysis module, a heat exchange, and an inverted hydrogen storage device. The fuel cell module can comprise a fuel cell hydrogen inlet in fluid communicatio... | 07/10/2007 |
| 7233079 | Renewable energy electric power generating system A renewable electric power system includes a high temperature superconducting wind turbine using high temperature superconducting yttrium-barium-copper oxide for the rotor and stator windings as well as a superconducting bearing. Power from the turbine is stored in ... | 06/19/2007 |
| 7226529 | Electrolyzer system to produce gas at high pressure An apparatus and method to produce hydrogen gas a high pressure is disclosed. An electrolyzer is located inside a pressure vessel that is pressurized with high pressure water. The high pressure water is provided to both the anode and cathode sides of the electrolyze... | 06/05/2007 |
| 7223488 | Integrated fuel cell system A simplified PEM fuel cell system is integrated with a fuel processor and an exhaust gas oxidizer to ensure clean emissions. The fuel cell has an operating temperature of 100–200° C., and utilizes reformate fuel having a carbon monoxide level greater than 1000 pa... | 05/29/2007 |
| 7220503 | Method for operating a fuel cell in the minimal-or partial-load region The invention relates to a method for operating a PEM or DMFC fuel cell in the minimal- or partial-load region. According to the invention, the size of the cell surface, on which the fuel cell reaction takes place, is altered by means of opening or closing of feed c... | 05/22/2007 |
| 7208240 | Fuel cell with ionization membrane A fuel cell is disclosed comprising an ionization membrane having at least one area through which gas is passed, and which ionizes the gas passing therethrough, and a cathode for receiving the ions generated by the ionization membrane. The ionization membrane may in... | 04/24/2007 |
