Bizarre Patents
Pet Toilet-Like Water Disk and Food Storage
One pet-friendly inventor patented "a device for watering pets, e.g., a dog or cat." The device, he helpfully noted, "has the general shape of a toilet."
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| Number | Title | Issue Date |
| 8053131 | Apparatus and method for determining deterioration of a fuel cell and method for preventing deterioration of the same The present invention provides an apparatus and method for determining deterioration of a fuel cell, the method including measuring in real time fluoride ion concentration or pH value of outflow water from a fuel cell stack during operation in a fuel cell vehicle, c... | 11/08/2011 |
| 7867656 | Fuel cell separator and method for manufacturing the same The present invention provides a fuel cell separator formed of a continuous carbon-fiber composite, and a method for manufacturing the same. ... | 01/11/2011 |
| 7537855 | Unit cell structure comprising composite-gasket for fuel cell stack A composite gasket for fuel cell stack comprises two rows of beads and a support which can improve mountability and sealing property and reduce the assembly pressure by using materials having low hardness with reduced volume. This invention also relates to a structu... | 05/26/2009 |
| 7056612 | Method of preparing membrane-electrode-gasket assemblies for polymer electrolyte fuel cells A manufacturing method of Membrane-Electrode-Gasket Assemblies (MEGAs) used for polymer electrolyte fuel cells (PEFCs) is described wherein a polymer electrolyte membrane is formed directly on a electrode. A typical PEFC is constructed by assembling membrane-electro... | 06/06/2006 |
| 6953631 | Method and apparatus for operating polymer electrolyte membrane fuel cell below the freezing point of water A method for operating a polymer electrolyte membrane fuel cell at temperatures below the freezing point of water and an apparatus thereof are provided to prevent damage and performance degradation of the membrane-electrode assemblies. Non-humidified gas flows for s... | 10/11/2005 |
