US PATENT SUBCLASS 257 / 355
.~.~ With overvoltage protective means

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

213  DF  FIELD EFFECT DEVICE {6}
288  DF  .~ Having insulated electrode (e.g., MOSFET, MOS diode) {17}
355.~.~ With overvoltage protective means {1}
356  DF  .~.~.~> For protecting against gate insulator breakdown {4}

DEFINITION

Classification: 257/355

With overvoltage protective means:

(under subclass 288) Subject matter wherein the device has means to protect it against applied voltage which exceeds that which the device can tolerate before being damaged.