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Class Information
Number: 429/13
Name: Chemistry: electrical current producing apparatus, product, and process > Fuel cell, subcombination thereof or methods of operating > Process of operating
Description: Process of operating the apparatus.










Sub-classes under this class:

Class Number Class Name Patents
429/14 Circulating or feeding electrolyte 111
429/16 Fused or molten electrolyte 146
429/17 Generating, regenerating or recycling reactant 1,018


Patents under this class:
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Patent Number Title Of Patent Date Issued
6723460 Fuel cell system and method for operating the fuel cell system Apr. 20, 2004
6720098 Compressor arrangement for the operation of a fuel cell system Apr. 13, 2004
6720099 Fuel cell waste energy recovery combustor Apr. 13, 2004
6716546 System and method for supplying air to a fuel cell for use in a vehicle Apr. 6, 2004
6716547 Air condition assisted water recovery device integrated with cell stack assembly Apr. 6, 2004
6713201 Systems including replaceable fuel cell apparatus and methods of using replaceable fuel cell apparatus Mar. 30, 2004
6713206 Electrochemical cells comprising laminar flow induced dynamic conducting interfaces, electronic devices comprising such cells, and methods employing same Mar. 30, 2004
6709777 Performance recovery process for PEM fuel cells Mar. 23, 2004
6709780 System and method for controlling steam in a fuel system with a fuel processor Mar. 23, 2004
6706429 Catalytic humidifier and heater, primarily for humidification of the oxidant stream for a fuel cell Mar. 16, 2004
6706430 Electronic by-pass of fuel cell cathode gas to combustor Mar. 16, 2004
6706431 Fuel cell Mar. 16, 2004
6706432 Methods and products for improving performance of batteries/fuel cells Mar. 16, 2004
6703150 Direct methanol feed fuel cell and system Mar. 9, 2004
6699608 Method and apparatus for humidifying a gas flow and to a method for using such a device Mar. 2, 2004
6699612 Fuel cell power plant having a reduced free water volume Mar. 2, 2004
6698278 Indirect measurement of fuel concentration in a liquid feed fuel cell Mar. 2, 2004
6696186 Humidifying device for a fuel cell, method for humidifying a fuel cell membrane and fuel cell Feb. 24, 2004
6696187 Fuel cell power generating system Feb. 24, 2004
6692851 Fuel cell stack monitoring and system control Feb. 17, 2004
6692854 Fuel cell generator system and method for operating same Feb. 17, 2004
6689194 Fuel cell system having a replaceable getter element for purifying the fuel supply Feb. 10, 2004
6689499 Pressurized solid oxide fuel cell integral air accumular containment Feb. 10, 2004
6689500 Cooling a fuel cell stack Feb. 10, 2004
6686075 Process for producing electrical energy with the aid of a fuel cell Feb. 3, 2004
6686077 Liquid hetero-interface fuel cell device Feb. 3, 2004
6686081 Methods and apparatuses for a pressure driven fuel cell system Feb. 3, 2004
6686084 Gas block mechanism for water removal in fuel cells Feb. 3, 2004
6682835 Method and apparatus for increasing the operational efficiency of a fuel cell power plant Jan. 27, 2004
6682836 Method for the operation of a fuel cell battery comprising a control system Jan. 27, 2004
6682837 Method for producing electricity using a platinum-ruthenium-palladium catalyst in a fuel cell Jan. 27, 2004
6682838 Integrated fuel processor, fuel cell stack, and tail gas oxidizer with carbon dioxide removal Jan. 27, 2004
6682840 Fuel cell system having an evaporator Jan. 27, 2004
6682841 Thermal management for a vehicle mounted fuel cell system Jan. 27, 2004
6680136 Gas containment/control valve for a solid oxide fuel cell Jan. 20, 2004
6680137 Integrated biomass gasification and fuel cell system Jan. 20, 2004
6675573 Vehicles containing and methods for using a pre-heater to reduce emissions, and for warming fuel cells at low ambient temperatures Jan. 13, 2004
6677066 Circuit system for an integrated fuel cell system Jan. 13, 2004
6677067 Safety process and device for starting up a fuel cell Jan. 13, 2004
6673479 System and method for enabling the real time buying and selling of electricity generated by fuel cell powered vehicles Jan. 6, 2004
6673480 Sensor cell for an electrochemical fuel cell stack Jan. 6, 2004
6673481 Initiating operation of an electric vehicle or other load powered by a fuel cell at sub-freezing temperature Jan. 6, 2004
6670059 Fuel cell system having flow-diverting element Dec. 30, 2003
6670067 Fuel supply device for fuel cell Dec. 30, 2003
6662633 Method and apparatus for locating internal transfer leaks within fuel cell stacks Dec. 16, 2003
6660415 Method for improving the light-off performance of mobile fuel cell systems Dec. 9, 2003
6660416 Self-inerting fuel processing system Dec. 9, 2003
6660419 Solid polymer electrolyte fuel cell Dec. 9, 2003
6656618 Fuel cells system and method of controlling cells Dec. 2, 2003
6656619 Fuel cell system and method for operating a fuel cell Dec. 2, 2003

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