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"To place a man in a multi-stage rocket and project him into the controlling gravitational field of the moon where the passengers can make scientific observations, perhaps land alive, and then return to earth--all that constitutes a wild dream worthy of Jules Verne. I am bold enough to say that such a man-made voyage will never occur regardless of all future advances."
Lee deForest, American radio pioneer ; 1957
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| Number | Title | Issue Date |
| 8182659 | Proton exchange membrane (PEM) electrochemical cell having an integral, electrically-conductive, resiliently compressible, porous pad Electrochemical cell comprises, in one embodiment, a proton exchange membrane (PEM), an anode positioned along one face of the PEM, and a cathode positioned along the other face of the PEM. An electrically-conductive, compressible, spring-like, porous pad for defini... | 05/22/2012 |
| 7947405 | Solid polymer electrolyte composite membrane comprising porous ceramic support A solid polymer electrolyte composite membrane and method of manufacturing the same. The composite membrane comprises a porous ceramic support having a top surface and a bottom surface. The porous ceramic support may be formed by laser micromachining a ceramic sheet... | 05/24/2011 |
| 7897285 | Fuel cell system including gas recycling and pressurizing assembly A fuel cell system including a gas recycling and re-pressurizing assembly. In one embodiment, the fuel cell system includes a fuel cell stack, the stack having an oxygen outlet and an oxygen inlet. The fuel cell system additionally includes two gas/water separator t... | 03/01/2011 |
| 7867669 | Solid polymer electrolyte composite membrane comprising laser micromachined porous support A solid polymer electrolyte composite membrane and method of manufacturing the same. According to one embodiment, the composite membrane comprises a rigid, non-electrically-conducting support, the support preferably being a sheet of polyimide having a thickness of a... | 01/11/2011 |
| 7807063 | Solid polymer electrolyte composite membrane comprising plasma etched porous support A solid polymer electrolyte composite membrane and method of manufacturing the same. According to one embodiment, the composite membrane comprises a rigid, non-electrically-conducting support, the support preferably being a sheet of polyimide having a thickness of a... | 10/05/2010 |
| 7704627 | Proton exchange membrane (PEM) electrochemical cell having an integral electrically-conductive, resiliently compressible, porous pad Electrolysis cell comprises, in one embodiment, a proton exchange membrane (PEM), an anode positioned along one face of the PEM, and a cathode positioned along the other face of the PEM. An electrically-conductive, compressible, spring-like, porous pad for defining ... | 04/27/2010 |
| 7629071 | Gas diffusion electrode and method of making the same A gas diffusion electrode and method of making the same. According to one embodiment, the electrode comprises a support layer, a first cushioning layer positioned on top of the support layer, a second cushioning layer positioned on top of the first cushioning layer,... | 12/08/2009 |
| 7438985 | Proton exchange membrane (PEM) electrochemical cell having an integral, electrically-conductive, resiliently compressible, porous pad Electrolysis cell comprises, in one embodiment, a proton exchange membrane (PEM), an anode positioned along one face of the PEM, and a cathode positioned along the other face of the PEM. A multi-layer metal screen for defining a first fluid cavity is placed in conta... | 10/21/2008 |
| 7326736 | Composite proton exchange membrane and method of manufacturing the same A composite proton exchange membrane and method of manufacturing the same. The composite proton exchange membrane comprises a proton exchange membrane which has been modified by replacing membrane protons in desired areas of the membrane with a cationic polymer. The... | 02/05/2008 |
| 7261967 | Proton exchange membrane (PEM) electrochemical cell having an integral, electrically-conductive, resiliently compressible, porous pad Electrolysis cell comprises, in one embodiment, a proton exchange membrane (PEM), an anode positioned along one face of the PEM, and a cathode positioned along the other face of the PEM. A multi-layer metal screen for defining a first fluid cavity is placed in conta... | 08/28/2007 |
| 7252747 | Composite proton exchange membrane and method of manufacturing the same A composite proton exchange membrane and method of manufacturing the same. The composite proton exchange membrane comprises a proton exchange membrane which has been modified by replacing membrane protons in desired areas of the membrane with a cationic polymer. The... | 08/07/2007 |
| 7229534 | Proton exchange membrane (PEM) electrochemical cell having an integral, electrically-conductive, resiliently compressible, porous pad Electrolysis cell comprises, in one embodiment, a proton exchange membrane (PEM), an anode positioned along one face of the PEM, and a cathode positioned along the other face of the PEM. A multi-layer metal screen for defining a first fluid cavity is placed in conta... | 06/12/2007 |
| 6852441 | Reinforcement of multiple electrochemical cell frames for high-pressure operation Electrochemical cell stack comprises, in one embodiment, a plurality of cells arranged in series in a bipolar configuration, each cell including a proton exchange membrane (PEM), an anode positioned along one face of the PEM, and a cathode positioned along the other... | 02/08/2005 |
| 6685821 | Method and system for producing high-pressure hydrogen Disclosed are methods and systems for generating hydrogen gas at pressures high enough to fill a hydrogen storage cylinder for stationary and transportation applications. The hydrogen output of an electrochemical hydrogen gas generating device is integrat... | 02/03/2004 |
| 6669826 | Compact proton exchange membrane (PEM) electrochemical cell stack Compact proton exchange membrane (PEM) electrochemical cell stack. In a preferred embodiment, the cell stack comprises first and second sub-stacks of series-connected, proton exchange membrane (PEM) electrochemical cells. The first sub-stack is stacked be... | 12/30/2003 |
| 6500319 | Proton exchange membrane (PEM) electrochemical cell having an integral, electrically-conductive, compression pad Electrochemical cell comprises, in one embodiment, a proton exchange membrane (PEM), an anode positioned along one face of the PEM, and a cathode positioned along the other face of the PEM. To enhance electrolysis, platinum catalysts are present between t... | 12/31/2002 |
| 6464846 | Electrically-conductive elastomeric compression pad for use with proton exchange membrane electrochemical cells Electrically-conductive compression pad suitable for use in an electrolysis cell stack. In a preferred embodiment, the electrically-conductive compression pad comprises a single sheet of electrically-conductive material, such as a metal. The electrically-... | 10/15/2002 |
