Famous Patents
Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Application No. | Application Title | Issue Date |
| 20110051564 | Windup portable timepiece and method of operating crown with which this timepiece is equipped A portable timepiece has a timepiece exterior assembly having a case band containing a movement having a one-way clutch transmitting rotation to wind up a mainspring to the mainspring and preventing transmission of rotation to rewind the mainspring to the mainspring, an... | 03/03/2011 |
| 20090274013 | TIMING DEVICE WITH POWER WINDER A timing device utilizes hybrid power to drive a movement of the timing device, the hybrid power supply functioning as an auxiliary unit to deliver power to an electro-magnetically driving unit through an automatic control unit manipulated by a mechanical energy storage... | 11/05/2009 |
| 20070237035 | REVERSER MECHANISM FOR UNI-DIRECTIONAL ROTATIONAL DRIVING OF A WHEEL SET The mechanism includes, mounted to rotate freely on an arbour 6, a driving wheel (5) driven by an oscillating drive pinion (3) and a driven wheel (7) meshed with the first wheel set (1) of a kinematic chain and comprising a dome (11... | 10/11/2007 |
| 20070147179 | Timepiece with a constant-force device for acting on an oscillating system A timepiece, in particular a wristwatch, includes a constant-force device for acting on an oscillating system, the constant-force device including a switching unit and a tensioning module having a primary spring-energy store and a secondary spring-energy store. A second... | 06/28/2007 |
