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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:

Patent Number Title Of Patent Date Issued
7651799 Air humidification for fuel cell applications Jan. 26, 2010
7651798 Fuel cell system with reformer response time correction Jan. 26, 2010
7651796 Water atomization apparatus for a fuel cell system and also a method for humidifying a gas flow supplied to a fuel cell system Jan. 26, 2010
7648787 Gas leak detection device and fuel cell system Jan. 19, 2010
7648784 Method and apparatus for controlling a fuel cell system having a variable number of parallel-connected modules Jan. 19, 2010
7645531 Retaining water in a fuel cell stack for cooling and humidification during frozen startup Jan. 12, 2010
7645530 Method and apparatus for humidification of the membrane of a fuel cell Jan. 12, 2010
7645529 Fuel cell characteristic recovery method and apparatus Jan. 12, 2010
7641994 Fuel processing method and system Jan. 5, 2010
7641993 Exhaust emissions control of hydrogen throughout fuel cell stack operation Jan. 5, 2010
7638228 Enzyme immobilization for use in biofuel cells and sensors Dec. 29, 2009
7638218 Operation control of fuel cell system Dec. 29, 2009
7638217 Non-circulating coolant PEM fuel cell power plant assembly with low thermal mass Dec. 29, 2009
7638216 Fuel cell apparatus and associated method Dec. 29, 2009
7638215 Method of controlling delivery of fuel to a direct oxidation fuel cell Dec. 29, 2009
7638214 Fuel cells Dec. 29, 2009
7638213 Multi-stage rapid vaporization apparatus and method Dec. 29, 2009
7635964 Electronic equipment and power management method for the electronic equipment, and power source unit Dec. 22, 2009
7635531 Self contained fuel system for solid oxide fuel cell Dec. 22, 2009
7635530 Membraneless electrochemical cell and microfluidic device without pH constraint Dec. 22, 2009
7632584 Systems including replaceable fuel cell apparatus and methods of using replaceable fuel cell apparatus Dec. 15, 2009
7632582 Method and apparatus for maintaining high voltage in a fuel cell Dec. 15, 2009
7629065 Fuel cell system with a first and second electrically conductive casing Dec. 8, 2009
7629064 Manifold sealing and corrosion preventive interface plate for a fuel cell stack Dec. 8, 2009
7622212 Compact electrochemical converter Nov. 24, 2009
7622209 Fuel cell system and fuel cell starting method Nov. 24, 2009
7622207 Fuel cell cartridge with reformate filtering Nov. 24, 2009
7618729 Liquid fuel direct supply fuel cell system and its operation controlling method and controller Nov. 17, 2009
7618727 Fuel cell unit, control method for fuel cell unit, and information processing apparatus Nov. 17, 2009
7618726 Fuel cell system and protection method thereof Nov. 17, 2009
7615299 Method and apparatus for thermal, mechanical, and electrical optimization of a solid-oxide fuel cell stack Nov. 10, 2009
7615294 Methods of removing contaminants from a fuel cell electrode Nov. 10, 2009
7608352 Method for shutting down a fuel cell system using an air purge Oct. 27, 2009
7608351 System and method for controlling cathode stoichiometry to minimize RH excursions during transients Oct. 27, 2009
7601207 Gas recovery system Oct. 13, 2009
7599760 Online configurable control system for fuel cells Oct. 6, 2009
7597977 Diagnostic method for fuel cell Oct. 6, 2009
7597975 Fuel cell operation to minimize RH cycles to improve durability Oct. 6, 2009
7597974 Fuel cell system Oct. 6, 2009
7595123 Fuel cell system Sep. 29, 2009
7588845 Advanced control for an electrical heatable wax thermostat in the thermal coolant loop of fuel cell systems Sep. 15, 2009
7588844 Method of starting up operation of fuel cell at low temperature Sep. 15, 2009
7585580 Direct reacting anolyte-catholyte fuel cell for hybrid energy sources Sep. 8, 2009
7582979 Electric power supply system Sep. 1, 2009
7582377 Fuel cell and method of assembling the same Sep. 1, 2009
7582370 Fuel cell system Sep. 1, 2009
7579096 Fuel reservoir for fuel cell Aug. 25, 2009
7575825 Power supply system and control method of the same Aug. 18, 2009
7575824 Method of improving fuel cell performance by removing at least one metal oxide contaminant from a fuel cell electrode Aug. 18, 2009
7575823 Fuel cell system, fuel cell system drive method and fuel container for power generation Aug. 18, 2009

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