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Class Information
Number: 429/14
Name: Chemistry: electrical current producing apparatus, product, and process > Fuel cell, subcombination thereof or methods of operating > Process of operating > Circulating or feeding electrolyte
Description: Process having a step of circulating the electrolyte of feeding the same into or within the cell.

Sub-classes under this class:

Class Number Class Name Patents
429/15 Active material in electrolyte 124

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7700217 Electrolyte migration control for large area MCFC stacks Apr. 20, 2010
7666237 Reformate cooling system and method for use in a fuel processing subsystem Feb. 23, 2010
7544429 Membraneless and mediatorless microbial fuel cell Jun. 9, 2009
7435505 Fuel cell combination Oct. 14, 2008
7381487 In-situ removal of electrolyte from gas oxidizer Jun. 3, 2008
7358001 Process for operating a regenerative fuel cell Apr. 15, 2008
7235316 Integrated heat management of electronics and fuel cell power system Jun. 26, 2007
7201982 Methods for fuel cell coolant systems Apr. 10, 2007
7156887 Methods, apparatus, and systems for producing hydrogen from a fuel Jan. 2, 2007
7128990 Additives to the gas supply of fuel cells with circulating electrolytes and means to regenerate used stacks Oct. 31, 2006
7112380 Method and apparatus for the storage and redistribution of electrical energy Sep. 26, 2006
6977002 Fuel reforming apparatus and the method of starting it Dec. 20, 2005
6924049 Electrolysis fuel cell energy plant Aug. 2, 2005
6890490 Hydrogen absorbing tank apparatus May. 10, 2005
6887600 Regenerative fuel cell with pH control May. 3, 2005
6878479 Tilted fuel cell apparatus Apr. 12, 2005
6869705 Method and device for recovering water from a fuel cell Mar. 22, 2005
6855660 Rhodium electrocatalyst and method of preparation Feb. 15, 2005
6759155 Plate construction of high temperature air-to-air heat exchanger Jul. 6, 2004
6727015 Fuel cell Apr. 27, 2004
6709777 Performance recovery process for PEM fuel cells Mar. 23, 2004
6699608 Method and apparatus for humidifying a gas flow and to a method for using such a device Mar. 2, 2004
6627339 Fuel cell stack integrated with a waste energy recovery system Sep. 30, 2003
6569309 Fuel cell type reactor and method for producing a chemical compound by using the same May. 27, 2003
6555267 Membrane-separated, bipolar multicell electrochemical reactor Apr. 29, 2003
6517963 Carbon monoxide filter Feb. 11, 2003
6461495 Process for the removal of sulfate ions from an electrolyte Oct. 8, 2002
6428915 Apparatus for regulating humidity of process air in fuel cell system Aug. 6, 2002
6406810 Fuel cell system with cathode-side water separating devices Jun. 18, 2002
6379828 Fuel cell Apr. 30, 2002
6338912 Fuel cell system having common scroll type compressor and regenerator Jan. 15, 2002
6309769 Carbon monoxide filter layer Oct. 30, 2001
6291089 Radial planar fuel cell stack construction for solid electrolytes Sep. 18, 2001
6242125 Battery circulation system with improved four-way valve Jun. 5, 2001
6207306 Apparatus for humidifying the air stream of a fuel cell power plant Mar. 27, 2001
6194094 Polymer electrolyte fuel cell Feb. 27, 2001
6187467 Ionomer impregnation of electrode substrates for improved fuel cell performance Feb. 13, 2001
6153323 Electrode treatment method for improving performance in liquid feed fuel cells Nov. 28, 2000
6149782 Rhodium electrocatalyst and method of preparation Nov. 21, 2000
6071634 Electric power generation system including fuel cells Jun. 6, 2000
6068941 Start up of cold fuel cell May. 30, 2000
6048633 Fuel cell stack Apr. 11, 2000
6017646 Process integrating a solid oxide fuel cell and an ion transport reactor Jan. 25, 2000
5998053 Method for operating an apparatus with fuel cells Dec. 7, 1999
5980716 Water treatment apparatus for a fuel cell system Nov. 9, 1999
5935726 Method and apparatus for distributing water to an ion-exchange membrane in a fuel cell Aug. 10, 1999
RE36148 Method and apparatus for disposing of water and/or inert gas from a fuel cell block Mar. 16, 1999
5840437 Apparatus with fuel cells Nov. 24, 1998
5795669 Electrode Aug. 18, 1998
5774918 Modular rolling pin with dough storage means Jul. 7, 1998

1 2 3

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