The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7232487 | Method for making an epitaxial germanium temperature sensor A method of making a highly sensitive epitaxial germanium low temperature sensor that is superior in the method of production and performance than those currently available. The geometry and sensitivity of the sensor can be tuned to desired temperature ranges, and s... | 06/19/2007 |
| 7225787 | Optimized fuel management system for direct injection ethanol enhancement of gasoline engines Fuel management system for enhanced operation of a spark ignition gasoline engine. Injectors inject an anti-knock agent such as ethanol directly into a cylinder. It is preferred that the direct injection occur after the inlet valve is closed. It is also preferred th... | 06/05/2007 |
| 7122687 | Process for the production of an immunosuppressant In one aspect, the present invention provides a process for producing a sodium salt of an immunosupressant of Formula I ... | 10/17/2006 |