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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| Number | Title | Issue Date |
| 7985121 | Chemical-mechanical planarization pad having end point detection window A chemical mechanical polishing pad. The pad includes a surface and a polymer matrix capable of transmitting at least a portion of incident radiation. In addition, at least one embedded structure in the polymer matrix, including a portion of the pad where the embedd... | 07/26/2011 |
| 7534163 | Polishing pad An improved polishing pad for polishing semi-conductors and other planar substrates in the presence of a slurry which optionally may contain abrasive particles is disclosed. The polishing pad comprises a non-woven fibrous component, a portion which may optionally co... | 05/19/2009 |
| 7357704 | Polishing pad An improved polishing pad for polishing semi-conductors and other planar substrates in the presence of a slurry which optionally may contain abrasive particles is disclosed. The polishing pad comprises a non-woven fibrous component, a portion which may optionally co... | 04/15/2008 |
