US PATENT SUBCLASS 377 / 120
.~.~ Using only semiconductors having at least three electrodes

Current as of: June, 1999
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377 /   HD   ELECTRICAL PULSE COUNTERS, PULSE DIVIDERS, OR SHIFT REGISTERS: CIRCUITS AND SYSTEMS

118  DF  PULSE COUNTING OR DIVIDING CHAINS {4}
119  DF  .~ Using bistable regenerative trigger circuits {3}
120.~.~ Using only semiconductors having at least three electrodes {3}
121  DF  .~.~.~> Field-effect device (e.g., JFET, IGFET, MNOS)
122  DF  .~.~.~> Ring counter
123  DF  .~.~.~> Reversible counter

DEFINITION

Classification: 377/120

Using only semiconductors having at least three electrodes:

(under subclass 119) Subject matter where the only active elements in the trigger circuit are semiconducting devices having three or more electrodes.

SEE OR SEARCH CLASS

327, Miscellaneous Active Electrical Nonlinear Devices, Circuits, and Systems,

185+, for miscellaneous stable state circuits utilizing a semiconducting device.