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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
6979510 Solid polymer electrolyte membrane of a fuel cell and method for producing the same Dec. 27, 2005
6977002 Fuel reforming apparatus and the method of starting it Dec. 20, 2005
6977118 Optimization of the operating parameters of a direct methanol fuel cell system Dec. 20, 2005
6977119 Fuel cell transient control scheme Dec. 20, 2005
6977121 Fuel cell power plant having a fuel concentration sensor cell Dec. 20, 2005
6972159 Fuel cell system Dec. 6, 2005
6969561 Fuel cell ambient environment monitoring and control apparatus and method Nov. 29, 2005
6962760 Methods of conditioning direct methanol fuel cells Nov. 8, 2005
6960400 Fuel cell power generation system and control method thereof Nov. 1, 2005
6960401 Fuel cell purging method and apparatus Nov. 1, 2005
6958195 Steam generator for a PEM fuel cell power plant Oct. 25, 2005
6953630 Fuel cell anomaly detection method and apparatus Oct. 11, 2005
6953631 Method and apparatus for operating polymer electrolyte membrane fuel cell below the freezing point of water Oct. 11, 2005
6951698 Fuel cell stack assembly Oct. 4, 2005
6946209 Desulfurization for fuel cell systems using sulfur separating membranes Sep. 20, 2005
6942048 Accessory drive apparatus Sep. 13, 2005
6942937 Air distribution method and controller for a fuel cell system Sep. 13, 2005
6942938 System and method for cooling a fuel cell arrangement Sep. 13, 2005
6939630 Composite electrode for reducing oxygen Sep. 6, 2005
6939631 Fuel cell system and method of operation Sep. 6, 2005
6939633 Fuel cell shutdown and startup using a cathode recycle loop Sep. 6, 2005
6939634 Fuel cell system having two reformer units for catalytic decomposition Sep. 6, 2005
6936359 Apparatus for warming-up fuel cell Aug. 30, 2005
6936360 Method and apparatus for operating a fuel cell system Aug. 30, 2005
6936361 Method for humidifying a fuel stream for a direct methanol fuel cell Aug. 30, 2005
6936362 Variable pressure drop stack Aug. 30, 2005
6936368 System and method for safe removal/oxidative decomposition of fuel from a fuel container Aug. 30, 2005
6926979 Waste heat recovery means for fuel cell power system Aug. 9, 2005
6926980 System and method for draining remaining water in fuel cell Aug. 9, 2005
6926981 Fuel cell system for operation at pressures below the pressure of the surrounding environment and method of operation thereof Aug. 9, 2005
6926987 Fuel cell system and method for operating the same Aug. 9, 2005
6924049 Electrolysis fuel cell energy plant Aug. 2, 2005
6924050 Method for dissipating energy in a fuel cell generator system Aug. 2, 2005
6924056 Cascade fuel inlet manifold for fuel cells Aug. 2, 2005
6921594 Exhaust treatment and filtration system for molten carbonate fuel cells Jul. 26, 2005
6921595 Joint-cycle high-efficiency fuel cell system with power generating turbine Jul. 26, 2005
6921597 Electrical current generation system Jul. 26, 2005
6913847 Fuel cell system having a hydrogen sensor Jul. 5, 2005
6908700 Fuel cell system for vehicle Jun. 21, 2005
6908702 Fuel cell for airship power generation and heating Jun. 21, 2005
6905791 Fuel cell system and method of operation in which temperatures in the freezing range of water can occur Jun. 14, 2005
6905792 Cooling system and cooling process of fuel cell Jun. 14, 2005
6903259 Thermoelectric device for use with fuel reformer and associated method Jun. 7, 2005
6899968 Fuel cell power supply device May. 31, 2005
6899969 Fuel cell system and freezing prevention method thereof May. 31, 2005
6896982 Conditioning method for fuel cells May. 24, 2005
6896983 Membrane for fuel cells May. 24, 2005
6893754 Fuel cell system with device for water recovery and method of operating such a system May. 17, 2005
6893756 Lambda sensing with a fuel cell stack May. 17, 2005
6893758 Fuel cell system and method of stopping the system May. 17, 2005

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