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 |
| 5726380 | Thermo-electric power generation using porous metal blocks having a plurality of thermocouples connected in series A thermo-electric power generating element has the structure that two kinds of metal sheets, or foils, which form a thermocouple combination are laminated together and alternately connected at one end and the other end so as to form a plurality of thermoc... | 03/10/1998 |
