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 |
| 6935809 | Method and means for making an embankment A method for making an embankment in areas and forming a barrier against water with the help of supports. For this purpose, corrugated steel sheets or corrugated panels of some other material, such as plastic or aluminum, are folded across their longitudinal directi... | 08/30/2005 |
| 6485230 | Submersible modular dike and method for segregating body of water A modular dike is used to divide a body of water into two distinct parts. The modular dike uses a plurality of floatable modules. Each module is floated into the body of water and sunk at predetermined locations in the body of water. The modules are align... | 11/26/2002 |
| 6443655 | Flood barrier A flood barrier unit is provided for a flood barrier system. Each unit has three pillars attached to pillar footings implanted in the surrounding ground surface. For each pillar a concrete brace member footing is provided for the support of brace members ... | 09/03/2002 |
| 6394700 | Highway underdrain plastic apron endwall with anti-floatation wings A plastic apron endwall is connected to a drain which extends under a highway. The apron endwall is in the form of an upwardly opening trough having a general wedge shape and incorporates lateral wings which extend outwardly from the sides of the apron en... | 05/28/2002 |
| 6079904 | Transportable collapsible protective barrier, especially against high water The transportable, foldable protective barrier, especially against high water, contains a series of supports of supporting elements articulately joined with one another, a number of parallel pipe rods for the joining of the supports as well as a number of... | 06/27/2000 |
| 6042301 | River bank flood barrier A barrier forming a temporary dam that may be erected quickly alongside a river in spate to protect a flood-prone area. The barrier (11) mainly consists of extractable piles (15) fitted in holes in the ground, and removable water-tight members (20) that m... | 03/28/2000 |
