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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| Number | Title | Issue Date |
| 6108596 | Process and device for the control and/or regulation of wagon body tilt systems A process and a device for the control and/or regulation of a wagon body tilt system (1) for a railed vehicle, e.g., a train. Limit values with respect to comfort are taken into consideration for this purpose. In an equivalent way, these limit values pres... | 08/22/2000 |
| 4625652 | Two-axled central support bogie for railway and tramway vehicles with two or more articulated bodies A two-axled central support bogie for railway and tramway vehicles with two or more articulated bodies includes two cross members carrying the wheels, and a central longitudinal structure the ends of which bear on two air springs carried by respective cen... | 12/02/1986 |
| 4562775 | Railway vehicle with end and intermediate trucks A railway vehicle, in particular a locomotive, has three or more trucks with the bolsters of each swivelly supported on the respective truck frames and having means for transmitting longitudinal traction and braking forces to the body underframe. The truc... | 01/07/1986 |
| 4440093 | Vehicle tilt control apparatus A vehicle tilt control apparatus has an acceleration detector for detecting vibration in horizontal and lateral direction of a car body, a fluidically operating mechanism disposed between the car body and a truck and compensation circuits for compensating... | 04/03/1984 |
| 4363277 | Stabilizing high speed railway truck safety device A safety device for a banking vehicle includes a pair of cylinders which extend to hold the superstructure in an upright position. The cylinders are hydraulically connected to an accumulator which provides a pressurized fluid reservoir. A valve controls f... | 12/14/1982 |
| 4044687 | Truck for the common pivotal support of two car bodies A truck for the pivotal support of two car bodies, particularly of articulated rail motor cars, comprises a truck frame having a vertical pivot for each car mounted in spaced longitudinal locations on the truck frame. A transversely extending swiveling bo... | 08/30/1977 |
| 3977694 | Roll stabilization system A vehicle has a wheeled chassis and a body movably mounted thereon, the body being able to carry goods and/or passengers. An accelerometer detects forces acting on the vehicle as the vehicle passes through a curve and is arranged to activate a vehicle bod... | 08/31/1976 |