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Class Information
Number: 429/22
Name: Chemistry: electrical current producing apparatus, product, and process > Fuel cell, subcombination thereof or methods of operating > Automatic control means
Description: Apparatus having automatic control means for regulating some operational feature of the cell.










Sub-classes under this class:

Class Number Class Name Patents
429/23 Electrical output dependent 421
429/25 Pressure dependent 340
429/24 Temperature dependent 445


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
7704616 Method for purging fuel cell system Apr. 27, 2010
7700512 Carbon monoxide selective oxidizing catalyst and manufacturing method for the same Apr. 20, 2010
7700206 Fuel cell system Apr. 20, 2010
7700209 Power generation control system for fuel cell Apr. 20, 2010
7700210 Increasing thermal dissipation of fuel cell stacks under partial electrical load Apr. 20, 2010
7695844 System stability improvements tolerating increased nitrogen cross-over Apr. 13, 2010
7695836 Method for initial activation of polymer electrolyte fuel cell Apr. 13, 2010
7691519 Fuel cell Apr. 6, 2010
7691518 Prevention of flooding of fuel cell stack Apr. 6, 2010
7691512 Fuel-cell power-generation system and method Apr. 6, 2010
7691508 Fuel cell shutdown and startup using a cathode recycle loop Apr. 6, 2010
7691507 Combination fuel cell and ion pump, and methods and infrastructure systems employing same Apr. 6, 2010
7691503 Modular fuel cell power system, and technique for controlling and/or operating same Apr. 6, 2010
7691502 Modular fuel cell power system, and technique for controlling and/or operating same Apr. 6, 2010
7691501 Fuel cell system and controlling method thereof Apr. 6, 2010
7687168 Fuel cell system for setting predetermined operation state when substitutional value control is impossible Mar. 30, 2010
7687167 Power supply unit Mar. 30, 2010
7687164 On-line system identification and control of fuel cell humidification via HFR measurements Mar. 30, 2010
7688021 Fuel cell and battery systems Mar. 30, 2010
7682719 Method for adaptive prediction of stack voltage in automotive fuel cell systems Mar. 23, 2010
7682721 Fuel cell system Mar. 23, 2010
7678485 Fuel cartridge, fuel cell and portable electrical appliance including fuel cell Mar. 16, 2010
7678480 Fuel cell system Mar. 16, 2010
7678479 Hydrogen fuel delivery systems Mar. 16, 2010
7674536 Fuel supply device and fuel supply system Mar. 9, 2010
7674537 Direct methanol type fuel cell and method of preventing elution of its fuel pole, quality control method and operation method Mar. 9, 2010
7674541 Hydrogen gas supply device and fuel cell apparatus Mar. 9, 2010
7670700 Fuel cell system, related method and current measuring device for fuel cell system Mar. 2, 2010
7670697 Fuel cell system with fuel cell unit having means for storing or dispensing electrical energy Mar. 2, 2010
7666540 Fuel cell system and vehicle with fuel cell system mounted thereon Feb. 23, 2010
7662494 Fuel cell system Feb. 16, 2010
7662496 Fuel cell cooling system and method for controlling circulation of cooling liquid in fuel cell Feb. 16, 2010
7655332 System and method for optimizing fuel cell purge cycles Feb. 2, 2010
7655330 Method of operating fuel cell and power supply system Feb. 2, 2010
7655331 Fuel cell supply including information storage device and control system Feb. 2, 2010
7651807 Fuel cell system Jan. 26, 2010
7648784 Method and apparatus for controlling a fuel cell system having a variable number of parallel-connected modules Jan. 19, 2010
7645532 Solid-oxide fuel cell system having an upstream reformate combustor Jan. 12, 2010
7645533 Fuel cell power plant Jan. 12, 2010
7645536 Fuel cell, fuel cartridge and fuel cell system Jan. 12, 2010
7635964 Electronic equipment and power management method for the electronic equipment, and power source unit Dec. 22, 2009
7632585 Battery having fluid regulator with pressure equalization Dec. 15, 2009
7632584 Systems including replaceable fuel cell apparatus and methods of using replaceable fuel cell apparatus Dec. 15, 2009
7632583 Apparatus for improving the performance of a fuel cell electric power system Dec. 15, 2009
7632322 Hydrogen-producing fuel processing assemblies, heating assemblies, and methods of operating the same Dec. 15, 2009
7629067 Hydrogen-producing fuel processing systems and fuel cell systems with a liquid leak detection system Dec. 8, 2009
7628842 Hydrogen purification for fuel cell vehicle Dec. 8, 2009
7618730 Fuel cell system and method for regulating pressure in fuel cell systems Nov. 17, 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

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