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Browse by Category: Main > Chemistry
Class Information
Number: 429/25
Name: Chemistry: electrical current producing apparatus, product, and process > Fuel cell, subcombination thereof or methods of operating > Automatic control means > Pressure dependent
Description: Apparatus wherein the control is responsive to pressure.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
7695839 Method for improved power up-transient response in the fuel cell system Apr. 13, 2010
7695837 Fuel cell system Apr. 13, 2010
7691510 Fuel cell system with differential pressure control Apr. 6, 2010
7691518 Prevention of flooding of fuel cell stack Apr. 6, 2010
7691519 Fuel cell Apr. 6, 2010
7687169 Stop method for fuel cell system Mar. 30, 2010
7687170 Fuel cell system Mar. 30, 2010
7687171 Multi-stage in-line cartridge ejector for fuel cell system Mar. 30, 2010
7682721 Fuel cell system Mar. 23, 2010
7678482 Forced air fuel cell power system Mar. 16, 2010
7678481 Fuel cell system with a fuel tank configured to store a fuel at a pressure higher than atmospheric pressure Mar. 16, 2010
7678479 Hydrogen fuel delivery systems Mar. 16, 2010
7678480 Fuel cell system Mar. 16, 2010
7666535 Fuel cell system and method of operating a fuel cell system Feb. 23, 2010
7666537 Fuel cell system for preventing hydrogen permeable metal layer degradation Feb. 23, 2010
7662495 Passive restriction pathways in fuel cell water drainage Feb. 16, 2010
7651806 Non-flammable exhaust enabler for hydrogen powered fuel cells Jan. 26, 2010
7648786 System for generating electricity from a chemical hydride Jan. 19, 2010
7648787 Gas leak detection device and fuel cell system Jan. 19, 2010
7641993 Exhaust emissions control of hydrogen throughout fuel cell stack operation Jan. 5, 2010
7638215 Method of controlling delivery of fuel to a direct oxidation fuel cell Dec. 29, 2009
7638218 Operation control of fuel cell system Dec. 29, 2009
7632585 Battery having fluid regulator with pressure equalization Dec. 15, 2009
7632322 Hydrogen-producing fuel processing assemblies, heating assemblies, and methods of operating the same Dec. 15, 2009
7625655 Fuel container and delivery apparatus for a liquid feed fuel cell system Dec. 1, 2009
7618730 Fuel cell system and method for regulating pressure in fuel cell systems Nov. 17, 2009
7615296 Fuel cell system Nov. 10, 2009
7611785 Generation method with fuel cell generation system and fuel cell generation system Nov. 3, 2009
7611786 Polymer electrolyte fuel cell power generation system Nov. 3, 2009
7608353 Method for detecting compressor surge in a fuel cell system using a mass flow meter Oct. 27, 2009
7608354 Fuel cell system and control method of same Oct. 27, 2009
7601302 Self-regulating feedstock delivery systems and hydrogen-generating fuel processing assemblies and fuel cell systems incorporating the same Oct. 13, 2009
7597977 Diagnostic method for fuel cell Oct. 6, 2009
7597975 Fuel cell operation to minimize RH cycles to improve durability Oct. 6, 2009
7597974 Fuel cell system Oct. 6, 2009
7595123 Fuel cell system Sep. 29, 2009
7592083 Integrated air supply with humidification control for fuel cell power systems Sep. 22, 2009
7585578 Fuel cell system Sep. 8, 2009
7582372 Pressure regulator for fuel cell Sep. 1, 2009
7563530 Fuel amount control system for fuel cell Jul. 21, 2009
7560182 Reaction gas supply apparatus and method for fuel cell Jul. 14, 2009
7556879 Polymer electrolyte fuel cell Jul. 7, 2009
7556874 Fuel cell temperature control by evaporative cooling Jul. 7, 2009
7553568 High efficiency load-following solid oxide fuel cell systems Jun. 30, 2009
7550214 Fuel cell system and fuel cell operating method Jun. 23, 2009
7544431 Regulated hydrogen production system Jun. 9, 2009
7531258 Fuel cell system and method for discharging reaction gas from fuel cell May. 12, 2009
7527885 Fuel cell control system and method May. 5, 2009
7517600 Multiple pressure regime control to minimize RH excursions during transients Apr. 14, 2009
7514169 Fuel cell system Apr. 7, 2009

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