U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...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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Class 257/E33.01 - Doped superlattice (e.g., nipi superlattice) (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E33.008. This subclass
No. of patents: 4
Last issue date: 10/30/2007


NumberTitleIssue Date
7288422Photonic 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
7282741Vertical 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
7202510Semiconductor 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
6890780Method 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
 
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