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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| Number | Title | Issue Date |
| 6681680 | Vacuum brake booster with mechanical emergency braking aid A vacuum brake booster (10) is described, comprising a vacuum chamber (16) and a working chamber (18) separated from each other by a movable wall (14). The vacuum brake booster (10) includes an emergency braking aid comprising a permanent magnet (38), whi... | 01/27/2004 |
| 6672686 | Pumping apparatus for a vehicle brake system The fundamental approach of the present invention is to dispose bushes, in which pistons of a pumping apparatus for a vehicle brake system are movably disposed, in such a movable manner that they themselves may in dependence upon movements of the pistons ... | 01/06/2004 |
| 6672198 | Vacuum brake booster with mechanical emergency braking aid A vacuum brake booster (10) is described, having a vacuum chamber (16) and a working chamber (18) separated from one another by a movable wall (14), and a control valve (20), which comprises a housing (12) coupled workingly to the movable wall (14) and wh... | 01/06/2004 |
