Resources Contact Us Home
Browse by Category: Main > Chemistry
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
7063906 Fuel cell system and method for operating the same Jun. 20, 2006
7056609 System and method for starting a fuel cell stack assembly at sub-freezing temperature Jun. 6, 2006
7051801 Method and apparatus for humidification and temperature control of incoming fuel cell process gas May. 30, 2006
7052790 Fuel cell system and operation method having a condensed water tank open to atmosphere May. 30, 2006
7049015 Method of operating a fuel cell power source May. 23, 2006
7049016 Fuel cell system and its startup control May. 23, 2006
7049017 Method and apparatus for monitoring equivalent series resistance and for shunting a fuel cell May. 23, 2006
7049018 Method of operating a fuel cell system under freezing conditions May. 23, 2006
7049788 Power source device for electric motor May. 23, 2006
7045229 Gas-supplying apparatus, gas-supplying mechanism and gas-supplying process in fuel cell May. 16, 2006
7045232 Fuel cell system and method for producing electric energy using a fuel cell system May. 16, 2006
7040431 Fuel cell hybrid vehicle with automatically watered aqueous batteries May. 9, 2006
7041272 Systems and processes for providing hydrogen to fuel cells May. 9, 2006
7041402 Fuel electrode for solid polymer electrolyte fuel cell, solid polymer electrolyte fuel cell and method for controlling solid polymer electrolyte fuel cell May. 9, 2006
7041403 Fixed IDC operation of fuel cell power plant May. 9, 2006
7041404 Passive control of fuel concentration in a liquid feed fuel cell May. 9, 2006
7041410 Fuel cell stack in a pressure vessel May. 9, 2006
7041411 Method and apparatus for collecting condensate from combustible gas streams in an integrated fuel cell system May. 9, 2006
7036314 Method for treating and distributing water generated in a self-contained water using unit May. 2, 2006
7037609 Fuel circuit of the fuel cell system May. 2, 2006
7037612 Moisture stabilization for a fuel cell power plant system May. 2, 2006
7037613 Temperature zones in a solid oxide fuel cell auxiliary power unit May. 2, 2006
7037616 Fuel cell system having drain for condensed water stored in reforming reactor May. 2, 2006
7033687 Fuel cell power generation system and method of controlling fuel cell power generation Apr. 25, 2006
7033688 Apparatus and method for controlling a fuel cell system Apr. 25, 2006
7029775 Fuel cell system Apr. 18, 2006
7029776 Method for improving a heat and mass transport in a diffusion layer of a fuel cell, and corresponding fuel cell Apr. 18, 2006
7029777 Fuel cell and passive support Apr. 18, 2006
7022425 Electric energy generating apparatus and method of manufacturing the same Apr. 4, 2006
7018732 System and method for management of gas and water in fuel cell system Mar. 28, 2006
7014928 Direct current/direct current converter for a fuel cell system Mar. 21, 2006
7014929 Fuel cell Mar. 21, 2006
7014930 Apparatus and method for operating a fuel reformer to generate multiple reformate gases Mar. 21, 2006
7014941 Electrode catalyst for H.sub.2S fuel cells Mar. 21, 2006
7011901 Fuel cell generation system and method Mar. 14, 2006
7011902 Black start method and apparatus for a fuel cell power plant, and fuel cell power plant with black start capability Mar. 14, 2006
7008707 Direct water vaporization for fuel processor startup and transients Mar. 7, 2006
7005204 Fuel cell power supply Feb. 28, 2006
7005206 Fuel cell assembly for portable electronic device and interface, control, and regulator circuit for fuel cell powered electronic device Feb. 28, 2006
7001682 Solid-oxide fuel cell system having means for controlling tail gas combustion temperature Feb. 21, 2006
6998185 Dye-based fuel indicator system for fuel cells Feb. 14, 2006
6991663 Hydrogen-rich gas supply device for fuel cell Jan. 31, 2006
6989205 Hydrophilic side-chain polymer electrolyte membranes Jan. 24, 2006
6989207 Architected fuel cell system for modular application Jan. 24, 2006
6989211 Method and apparatus for controlling a fuel cell system Jan. 24, 2006
6986957 Fuel cell system Jan. 17, 2006
6986958 Fuel cell stack melting of coolant water during frozen startup Jan. 17, 2006
6986959 Low temperature fuel cell power plant operation Jan. 17, 2006
6982129 Method and apparatus for monitoring equivalent series resistance and for shunting a fuel cell Jan. 3, 2006
6979504 Fuel cell system automatic power switching method and apparatus Dec. 27, 2005

  Recently Added Patents
Printing device, printing system, program, and printing method for printing based on print data from a user authorized to issue a print instruction for the print data
Telephone relaying apparatus, telephone relaying method, and program
Patient programmer with automated MRI compatibility verification for active implantable medical device
Radio communication system, base station device and mobile station device utilizing an intermittent reception
Display apparatus having a semi-penetration layer and a sealing unit
System and method for detecting executable machine instructions in a data stream
Image quality assessment
  Randomly Featured Patents
Three-link horse-bit mouthpiece
Compressor bearing cooling inlet plate
Sprocket wheel and photo film advancing device
Trouser-fly piece serging apparatus
Polyimide-imine toner and developer compositions
Method of designing external defibrillator waveforms
Zoom lens system
Double stringed tennis racquet
Belt nip type fixing device for image forming apparatus that varies a winding amount of a belt around a heating roller
Key cutting machine