...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7288422 | Photonic integrated device using reverse-mesa structure and method for fabricating the same A photonic integrated device using a reverse-mesa structure and a method for fabricating the same are disclosed. The photonic integrated device includes a first conductive substrate on which a semiconductor laser, an optical modulator, a semiconductor optical amplif... | 10/30/2007 |
| 7282741 | Vertical type nitride semiconductor light emitting diode Disclosed herein is a vertical type nitride semiconductor light emitting diode. The nitride semiconductor light emitting diode comprises an n-type nitride semiconductor layer, an active layer formed under the n-type nitride semiconductor layer, a p-type nitride semi... | 10/16/2007 |
| 7202510 | Semiconductor luminescent device and manufacturing method thereof A first principal plane faces a second principal plane of a p-type Ga N compound semiconductor that is in contact with an MQW luminescent layer. On the surface of the first principal plane, a first region made up of the p-type Ga N compound semiconductor including a... | 04/10/2007 |
| 6890780 | Method for forming an electrostatically-doped carbon nanotube device The present invention provides a method and associated structure for forming an electrostatically-doped carbon nanotube device. The method includes providing a carbon nanotube having a first end and a second end. The method also includes disposing a first metal cont... | 05/10/2005 |