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
7484590 Fuel cell system with muffler Feb. 3, 2009
7482080 Fuel cell system with a cooling device Jan. 27, 2009
7482079 Fuel cell system and method of controlling a fuel discharging process based on the fuel cell output voltage Jan. 27, 2009
7482074 Fuel cell system, mobile unit equipped with the system, and control method for the fuel cell system Jan. 27, 2009
7482072 Optimizing reactions in fuel cells and electrochemical reactions Jan. 27, 2009
7479338 Fuel cell system Jan. 20, 2009
7479336 Gas control and operation method of a fuel cell system for water and gas distribution Jan. 20, 2009
7479335 Anode humidification Jan. 20, 2009
7479334 Method for operating vehicle-mounted fuel cell stack Jan. 20, 2009
7479333 Fuel cell stack with multiple groups of cells and flow passes Jan. 20, 2009
7477049 Method for controlling the quality of the coolant for fuel cell systems Jan. 13, 2009
7476457 Fuel cells system and method of controlling cells Jan. 13, 2009
7473479 Current limiting system and current limiting method for fuel cells Jan. 6, 2009
7470481 Fuel cell system Dec. 30, 2008
7470479 Method and apparatus for warming-up fuel cell and fuel cell vehicle Dec. 30, 2008
7470478 Direct methanol feed fuel cell and system Dec. 30, 2008
7468215 Self-starting fuel cell assembly Dec. 23, 2008
7465508 Fuel cell stack temperature control system and method Dec. 16, 2008
7465506 Fuel cell device Dec. 16, 2008
7465504 Direct oxidation fuel cell and system operating on concentrated fuel using low oxidant stoichiometry Dec. 16, 2008
7462413 Method of operating a fuel cell system Dec. 9, 2008
7461707 Electric horizontal directional drilling machine system Dec. 9, 2008
7456517 Methods and apparatus for controlled solid oxide fuel cell (SOFC)/turbine hybrid power generation Nov. 25, 2008
7455921 Fuel cell system having reformer temperature maintenance system and control method thereof Nov. 25, 2008
7455920 Fuel cell system Nov. 25, 2008
7452619 Fuel cell system Nov. 18, 2008
7452618 Fuel cell cogeneration system Nov. 18, 2008
7452391 Feedforward control processes for variable output hydrogen generators Nov. 18, 2008
7449259 Power converter architecture and method for integrated fuel cell based power supplies Nov. 11, 2008
7449258 Integrated fuel cell stack thermostat Nov. 11, 2008
7445861 Method for detecting abnormality in fuel cell Nov. 4, 2008
7445647 Method for making a single unit fuel cell Nov. 4, 2008
7443133 Fuel cell management system and audio system provided with the management system Oct. 28, 2008
7442458 Fuel cell system and activation system thereof Oct. 28, 2008
7442457 Fuel cell system with compressor and also a method for operating such a fuel cell system Oct. 28, 2008
7442455 Apparatus and method for protecting fuel cell Oct. 28, 2008
7442454 Fuel cell system Oct. 28, 2008
7442453 Decontamination procedure for a fuel cell power plant Oct. 28, 2008
7442452 Fuel cell system and gas leak detection method Oct. 28, 2008
7442217 Integrated fuel processor for rapid start and operational control Oct. 28, 2008
7438986 Fuel cell system with improved humidification system Oct. 21, 2008
7435493 Fuel cell and method for operating the same Oct. 14, 2008
7435490 Oxygen getters for anode protection in a solid-oxide fuel cell stack Oct. 14, 2008
7432002 Method for regeneration of performance in a fuel cell Oct. 7, 2008
7431238 Arrangement and method for the generation of water on board an aircraft Oct. 7, 2008
7427451 Fuel cell system Sep. 23, 2008
7427448 Portable device, case for portable device, and fuel cell structure Sep. 23, 2008
7425380 Fuel cell system and related method Sep. 16, 2008
7425379 Passive electrode blanketing in a fuel cell Sep. 16, 2008
7419734 Method and apparatus for fuel cell systems Sep. 2, 2008

  Recently Added Patents
Generating and modifying textual code interfaces from graphical programs
Multi-state DC-DC converter having undirectional switches
Method and system for weighted fair queuing
Providing policy-based operating system services in an operating system on a computing system
Optical input device
Lighting fixture
Ink composition, ink for inkjet recording and ink set using the ink
  Randomly Featured Patents
Method of making infrared crystalline fiber and product
Offset window detector
Method for electroplating vias or through holes in substrates having conductors on both sides
Alkylsulfonyloxy substituted phenoxy alkanoic esters
Silicon/oxide/nitride/silicon nonvolatile memory with vertical channels
Modular robot
Intravascular folded tubular endoprosthesis
Systems and methods for processing text-based electronic documents
Semiconductor device structure and method for manufacturing the same
Conducting polymer nanofiber sensors