US PATENT SUBCLASS 327 / 498
.~.~ Negative resistance

Current as of: June, 1999
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327 /   HD   MISCELLANEOUS ACTIVE ELECTRICAL NONLINEAR DEVICES, CIRCUITS, AND SYSTEMS

365  DF  GATING (I.E., SWITCHING INPUT TO OUTPUT) {12}
493  DF  .~ Utilizing two electrode solid-state device {5}
498.~.~ Negative resistance {2}
499  DF  .~.~.~> "N"-shape curve on I-V plot (e.g., tunnel diode type, etc.)
500  DF  .~.~.~> "S"-shape curve on I-V plot (e.g., pnpn diode type, etc.) {1}

DEFINITION

Classification: 327/498

Negative resistance:

(under subclass 493) Subject matter wherein the switch comprises a solid-state two electrode device whose characteristic on a current-voltage plot has a portion with a negative slope.

SEE OR SEARCH THIS CLASS, SUBCLASS:

568+, for miscellaneous negative resistance device circuits.