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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
6656621 Fuel cell stack Dec. 2, 2003
6653596 Fuel cell operated welder Nov. 25, 2003
6653004 Process control for multiple air supplies Nov. 25, 2003
6649289 Fuel cell power supply system Nov. 18, 2003
6649290 Fuel cell thermal management system and method Nov. 18, 2003
6649292 Fuel cell system having a reformer unit Nov. 18, 2003
6649299 Gas diffusion electrode with nanosized pores and method for making same Nov. 18, 2003
6650968 Technique to regulate an efficiency of a fuel cell system Nov. 18, 2003
6645650 Procedure for purging a fuel cell system with inert gas made from organic fuel Nov. 11, 2003
6645652 Fuel cell electric power generation system Nov. 11, 2003
6645653 Fuel cell system, controller thereof and method Nov. 11, 2003
6645655 Passively pumped liquid feed fuel cell system Nov. 11, 2003
6641943 Metal-air fuel cell battery system having means for recording and reading operating parameters during discharging and recharging modes of operation Nov. 4, 2003
6641946 Fuel dissipater for pressurized fuel cell generators Nov. 4, 2003
6641947 Air manager system for metal air battery Nov. 4, 2003
6638339 Air filter assembly for low temperature catalytic processes Oct. 28, 2003
6638649 Method and article of manufacture to effect an oxygen deficient fuel cell Oct. 28, 2003
6638650 Method and apparatus for detecting transfer leaks in fuel cells and fuel cell stacks Oct. 28, 2003
6638651 Humidifying system for fuel cell Oct. 28, 2003
6638653 Fuel cell system Oct. 28, 2003
6635369 Method for improving fuel cell performance Oct. 21, 2003
6635370 Shut-down procedure for hydrogen-air fuel cell system Oct. 21, 2003
6635377 Electrochemical device and method for operation thereof Oct. 21, 2003
6632551 Fuel cell arrangement and gas supply system and method for operating the same Oct. 14, 2003
6632552 Water purge fuel cell system and method Oct. 14, 2003
6632553 Methods and apparatuses for managing effluent products in a fuel cell system Oct. 14, 2003
6632555 Proton electrolyte membrane fuel cell with anti-freeze coolant and humidifiers Oct. 14, 2003
6632556 Manifold assembly for a fuel cell power plant Oct. 14, 2003
6632557 Cathodes for metal air electrochemical cells Oct. 14, 2003
6630258 Process for wetting at least one of the surfaces of an electrolyte in a fuel cell Oct. 7, 2003
6630259 Fuel cell power system performing AC inversion, method of distributing AC power, and method of operating a fuel cell power system Oct. 7, 2003
6627338 Integrated fuel cell and pressure swing adsorption system Sep. 30, 2003
6627339 Fuel cell stack integrated with a waste energy recovery system Sep. 30, 2003
6620535 Strategies for preventing anode oxidation Sep. 16, 2003
6620538 Method and apparatus for monitoring equivalent series resistance and for shunting a fuel cell Sep. 16, 2003
6617065 Method and apparatus for maintaining neutral water balance in a fuel cell system Sep. 9, 2003
6617068 Bi-zone water transport plate for a fuel cell Sep. 9, 2003
6613464 Method and apparatus for reducing reactant crossover in a liquid feed electrochemical fuel cell Sep. 2, 2003
6613465 Control device for a fuel reforming apparatus Sep. 2, 2003
6610265 Method and system for desulfurizing gasoline or diesel fuel for use in a fuel cell power plant Aug. 26, 2003
6610431 Method and apparatus for establishing a negative pressure inside an enclosure that houses a fuel cell system Aug. 26, 2003
6610432 Impregnation of microporous electrocatalyst particles for improving performance in an electrochemical fuel cell Aug. 26, 2003
6607853 Method of converting a carbon-comprising material, method of operating a fuel cell stack, and a fuel cell Aug. 19, 2003
6607854 Three-wheel air turbocompressor for PEM fuel cell systems Aug. 19, 2003
6605375 Method of activating hydrogen storage alloy electrode Aug. 12, 2003
6605378 Functional integration of multiple components for a fuel cell power plant Aug. 12, 2003
6602624 Control apparatus and method for efficiently heating a fuel processor in a fuel cell system Aug. 5, 2003
6602625 Fuel cell with dual end plate humidifiers Aug. 5, 2003
6602627 Uninterruptible power supplies using fuel cells Aug. 5, 2003
6596422 Air breathing direct methanol fuel cell Jul. 22, 2003

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