Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 7432526 | Surface-passivated zinc-oxide based sensor A semiconductor device has a heterostructure including a first layer of semiconductor oxide material. A second layer of semiconductor oxide material is formed on the first layer of semiconductor oxide material such that a two dimensional electron gas builds up at an... | 10/07/2008 |
| 5999080 | Frequency dependent resistive element A frequency dependent resistor in which the length of the current path across the resistor varies as a function of the frequency of the electrical signals being passed therethrough. The resistor uses the principal known as skin effect to direct relatively... | 12/07/1999 |
| 3990098 | Structure capable of forming a diode and associated conductive path A diode-forming layered structure comprising a semiconductor body having a layered coating thereon, said semiconductor having a surface region of given conductivity type, said coating being a dispersed metal particle-polymer coating which before electrica... | 11/02/1976 |
