US PATENT SUBCLASS 257 / 428
.~ Electromagnetic or particle radiation

Current as of: June, 1999
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257 /   HD   ACTIVE SOLID-STATE DEVICES (E.G., TRANSISTORS, SOLID-STATE DIODES)

414  DF  RESPONSIVE TO NON-ELECTRICAL SIGNAL (E.G., CHEMICAL, STRESS, LIGHT, OR MAGNETIC FIELD SENSORS) {4}
428.~ Electromagnetic or particle radiation {2}
429  DF  .~.~> Charged or elementary particles {1}
431  DF  .~.~> Light {15}

DEFINITION

Classification: 257/428

Electromagnetic or particle radiation:

(under subclass 414) Subject matter wherein the electrical signal is generated by the device in response to radiant energy in the electromagnetic energy spectrum or in the form of neutral or charged particles (e.g., alpha or beta particles).