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 |
| 7191021 | Remote management of field devices in a manufacturing plant A client connected to a field device management station (FDMS) by a wireless path. An operator can issue commands to any field devices from the client. As a result, the operator can manage the field devices from any remote location. In addition, the FDMS may be conn... | 03/13/2007 |
| 7189884 | Processes for synthesis of tetrafluoropropene Disclosed in one embodiment is a process for the synthesis of 1,3,3,3-tetrafluoropropene that comprises (a) reacting a compound of formula (I) X1X2 with a compound of formula (II) CF3CH═CH2 to produce a reaction product ... | 03/13/2007 |
| 7181975 | Wireless capacitance pressure sensor A wireless pressure sensor system has a pressure sensing capacitor and an inductor mounted on a common housing. The pressure sensing capacitor has a conductive diaphragm, a dielectric layer and a fixed electrode separated at least in part from the diaphragm by a gap... | 02/27/2007 |
| 6844475 | Low temperature production of 1-chloro-3,3,3-trifluoropropene (HCFC-1233zd) A process for producing 1-chloro-3,3,3-trifluoropropene (HCFC-1233zd) from 1,1,1-3,3-pentachloropropane (HCC-240fa) by its reaction with hydrogen fluoride, the reactants are reacted in a liquid phase reaction at a temperature of less than 150° C. in the presence of... | 01/18/2005 |
