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
RE40060 Fuel cell system Feb. 12, 2008
7329348 Fuel cell system including an ion filter Feb. 12, 2008
7326482 Apparatus and method for operation of a high temperature fuel cell system using recycled anode exhaust Feb. 5, 2008
7326481 Fuel cell system Feb. 5, 2008
7326480 Fuel cell power system and method of controlling a fuel cell power system Feb. 5, 2008
7323268 Battery with miniaturised SOFC fuel cells Jan. 29, 2008
7323263 Fuel cell system and method of operation to reduce parasitic load of fuel cell peripherals Jan. 29, 2008
7323262 Method of operating a fuel cell power system to deliver constant power Jan. 29, 2008
7320836 Integral air preheater and start-up heating means for solid oxide fuel cell power generators Jan. 22, 2008
7318970 Architectural hierarchy of control for a fuel processor Jan. 15, 2008
7318969 Fuel cell Jan. 15, 2008
7317316 Apparatus and method for measuring the insulation resistance of a fuel cell system Jan. 8, 2008
7316853 Airbreathing fuel cell Jan. 8, 2008
7316719 Hydrogen generating apparatus Jan. 8, 2008
7311984 Fuel cell system Dec. 25, 2007
7309541 Fuel cell Dec. 18, 2007
7309536 Method for vehicle thermal management Dec. 18, 2007
7305865 Hydrocarbon reformer performance sensing system Dec. 11, 2007
7303831 Antifreeze cooling subsystem Dec. 4, 2007
7300717 Control device for fuel cell system and related method Nov. 27, 2007
7300716 Fuel cell system with a control unit Nov. 27, 2007
7297426 Direct methanol fuel cell system, fuel cartridge, and memory for fuel cartridge Nov. 20, 2007
7294422 Cooling method for fuel cell Nov. 13, 2007
7294421 Solid oxide auxiliary power unit reformate control Nov. 13, 2007
7292845 Cell phone having local wireless conference call capabilities Nov. 6, 2007
7291417 Compositional and structural gradients for fuel cell electrode materials Nov. 6, 2007
7291412 Control apparatus and control method of fuel cell system Nov. 6, 2007
7291411 Fuel cell shutdown and startup purge using a stoichiometric staged combustor Nov. 6, 2007
7285346 Method and apparatus for controlling a combined heat and power fuel cell system Oct. 23, 2007
7285345 Ventilation of fuel cell power plant Oct. 23, 2007
7285247 Apparatus and method for operating a fuel reformer so as to purge soot therefrom Oct. 23, 2007
7282290 Freeze tolerant fuel cell power plant with a direct contact heat exchanger Oct. 16, 2007
7282288 Fuel cell system and method Oct. 16, 2007
7282287 Purging water with reactant air pump powered by operational fuel cell system during shutdown Oct. 16, 2007
7282286 Start-up method for fuel cell Oct. 16, 2007
7282285 Method and apparatus for the operation of a cell stack assembly during subfreezing temperatures Oct. 16, 2007
7282284 Methods for operating fuel cells fed with a gas containing hydrogen and carbon oxide, and devices relating thereto Oct. 16, 2007
7282283 Method and device for limiting crossover in fuel cell systems Oct. 16, 2007
7282281 Method for recognition of a leak in a fuel cell Oct. 16, 2007
7276307 Method and apparatus for controlling a combined heat and power fuel cell system Oct. 2, 2007
7276305 Method of operating fuel cell Oct. 2, 2007
7276304 Fuel cell system including a unit for electrical isolation of a fuel cell stack from a manifold assembly and method therefor Oct. 2, 2007
7276303 Direct methanol fuel cell system, portable electronic appliance, and method of detecting an amount of liquid fuel remaining in direct methanol type fuel cell system Oct. 2, 2007
7270900 Automatic measurement of fuel cell resistance Sep. 18, 2007
7270899 On-board fuel cell powered electric vehicle Sep. 18, 2007
7270688 Compact fuel processor for producing a hydrogen rich gas Sep. 18, 2007
7267899 Method and system for improving the performance of a fuel cell Sep. 11, 2007
7267897 Fuel cell for powering electronic appliances, in particular portable objects Sep. 11, 2007
7264900 Fuel cell system Sep. 4, 2007
7261962 Variable fuel cell power system for generating electrical power Aug. 28, 2007

  Recently Added Patents
Preparation and use of meristematic cells belonging to the Dendrobium phalaenopsis, Ansellia, Polyrrhiza, Vanilla, Cattleya and Vanda genera with high content of phenylpropanoids, hydrosoluble
Control method and allocation structure for flash memory device
Method of manufacturing nitride semiconductor and nitride semiconductor element
Image capturing apparatus, control method thereof, and program
Nano-pigment inkjet ink composition that has a low odor and is environmentally-friendly
Method and apparatus for efficiently inserting fills in an integrated circuit layout
  Randomly Featured Patents
Automatic brightness control circuit employing a closed control loop stabilized against disruption by large amplitude video signals
Dentifrice including luster imparting agent
Dental operating unit with reversible dental assistant's unit
Ink-jet recording apparatus and recording method therefor
Semiconductor memory device
High-voltage DC/DC converter
Power transistor device vertical integration
Safety hook locking device for towing chains
Hard facing of metal substrates using material containing VC and improved flux compositions therefor
Novel thioureidoiminoisoindolinone and use as plant growth regulator