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Class Information
Number: 204/DIG.4
Name: Chemistry: electrical and wave energy > Electrolysis cell combined with fuel cell

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7887961 Fuel cell with hydrogen internal recirculation Feb. 15, 2011
7563526 Fuel cell system and method for removal of water from fuel cells Jul. 21, 2009
7396440 Load leveling and electrolysis system Jul. 8, 2008
7169493 Fuel cell system with thermal management and method of operation thereof Jan. 30, 2007
7112380 Method and apparatus for the storage and redistribution of electrical energy Sep. 26, 2006
7014932 Drainage system and process for operating a regenerative electrochemical cell system Mar. 21, 2006
6972159 Fuel cell system Dec. 6, 2005
6926982 Fuel cell Aug. 9, 2005
6924049 Electrolysis fuel cell energy plant Aug. 2, 2005
6833207 Unitized regenerative fuel cell with bifunctional fuel cell humidifier and water electrolyzer Dec. 21, 2004
6576362 Electrochemical cell system Jun. 10, 2003
6117302 Fuel cell aluminum production Sep. 12, 2000
6110615 Fuel cell power plant with electrochemical autothermal reformer Aug. 29, 2000
5976724 Fuel cell power plant with electrochemical autothermal reformer Nov. 2, 1999
5928806 Recycling of carbon dioxide into methyl alcohol and related oxygenates for hydrocarbons Jul. 27, 1999
5632870 Energy generation apparatus May. 27, 1997
5513600 Water fuel converter for automotive and other engines May. 7, 1996
5512145 Energy conversion system Apr. 30, 1996
5395491 Method for preventing sea water cells from being destroyed by biofouling Mar. 7, 1995
5376470 Regenerative fuel cell system Dec. 27, 1994
5346778 Electrochemical load management system for transportation applications Sep. 13, 1994
5342702 Synergistic process for the production of carbon dioxide using a cogeneration reactor Aug. 30, 1994
5316643 Apparatus for the storage and conversion of energy May. 31, 1994
5316632 Method for improving efficiency of electro-chemical cells May. 31, 1994
5306577 Regenerative fuel cell system Apr. 26, 1994
5282937 Use of ion conductors in the pyrochemical reduction of oxides Feb. 1, 1994
5277994 Variable pressure passive regenerative fuel cell system Jan. 11, 1994
5156927 Film electric generation system Oct. 20, 1992
5096054 Electrochemical method for the removal of nitrogen oxides and sulfur oxides from flue gas and other sources Mar. 17, 1992
5041197 H.sub.2 /C.sub.12 fuel cells for power and HCl production - chemical cogeneration Aug. 20, 1991
4990412 Cryogenic cooling system with precooling stage Feb. 5, 1991
4988580 Fuel cell power generating system Jan. 29, 1991
4839247 Static regenerative fuel cell system for use in space Jun. 13, 1989
4818353 Method for modifying electrocatalyst material, electrochemical cells and electrodes containing this modified material, and synthesis methods utilizing the cells Apr. 4, 1989
4797186 Method and apparatus for operating a fuel cell in combination with an electrochemical cell to produce a chemical product Jan. 10, 1989
4780187 Method and apparatus for operating a fuel cell in combination with an electrochemical cell to produce a chemical product Oct. 25, 1988
4761209 System for the extraction and utilization of oxygen from fluids Aug. 2, 1988
4749453 Method and apparatus for making hydrochloric acid and sodium hydroxide Jun. 7, 1988
4689133 Directly electrically coupled fuel cell-electrolysis cell system Aug. 25, 1987
4648948 Electrogenerative oxidation of lower alcohols to useful products Mar. 10, 1987
4647351 Process for generating chlorine and caustic soda using a membrane electrolysis cell coupled to a membrane alkaline fuel cell Mar. 3, 1987
4629544 Apparatus and method for reversibly removing ligands from carriers Dec. 16, 1986
4541908 Heme protein immobilized electrode and its use Sep. 17, 1985
4534833 Zinc-chloride battery in a chlorine producing/consuming plant Aug. 13, 1985
4528947 Solar oxy-hydrogen vehicle Jul. 16, 1985
4502928 Method and apparatus for producing halogen Mar. 5, 1985
4439301 Photoelectrochemical cells including chalcogenophosphate photoelectrodes Mar. 27, 1984
4415413 Method of concentrating alkali metal hydroxide in a cascade of hybrid cells Nov. 15, 1983
4389287 Withdrawal of molten alkali hydroxide through an electrode for depletion of water dissolved therein Jun. 21, 1983
4385970 Spontaneous deposition of metals using fuel fed catalytic electrode May. 31, 1983

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