US PATENT SUBCLASS 361 / 91.5
.~.~.~ Including P-N junction (e.g., a diode, a zener diode, or transistor)

Current as of: June, 1999
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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

1  DF  SAFETY AND PROTECTION OF SYSTEMS AND DEVICES {32}
88  DF  .~ With specific voltage responsive fault sensor {4}
91.1  DF  .~.~ Overvoltage {6}
91.5.~.~.~ Including P-N junction (e.g., a diode, a zener diode, or transistor) {1}
91.6  DF  .~.~.~.~> With zener diode sensor

DEFINITION

Classification: 361/91.5

Including P-N junction (e.g., a diode, a zener diode, or transistor):

(under subclass 91.1) Subject matter comprising a P-N junction device and wherein the device is utilized in the detection and/or fault removal of the overvoltage condition (e.g., P-N threshold breakdown or transistor clamping).

(1) Note. P-N junction circuitry protection as found predominantly within the circuitry with less emphasis on substrate configurations are classified here, however,

details drawn to substrate technology should be classified in Class 257.

SEE OR SEARCH CLASS

257, Active Solid-State Devices, (e.g., Transistors, Solid-State Diodes),

355+, for P-N junction protection.