US PATENT SUBCLASS 505 / 192
.~.~ Capacitor or including capacitor

Current as of: June, 1999
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505 /   HD   SUPERCONDUCTOR TECHNOLOGY: APPARATUS, MATERIAL, PROCESS

150  DF  HIGH TEMPERATURE (Tc GREATER THAN 30 K) DEVICES, SYSTEMS, APPARATUS, COM- PONENTS, OR STOCK, OR PROCESSES OF USING {26}
191  DF  .~ Semiconductor thin film device or thin film electric solid-state device or system (i.e., active or passive) {2}
192.~.~ Capacitor or including capacitor

DEFINITION

Classification: 505/192

Capacitor or including capacitor:

(under subclass 191) Device that contains a capacitor or that is limited to a passive solid-state thin film component used in electrical and electronic circuits to store a charge of electricity, usually for very brief periods of time, with the ability to rapidly charge and discharge.

(1) Note. A capacitor is usually considered a passive component since it does not rectify, amplify, or switch and because charge carriers do not undergo energy level changes therein, although some active solid-state devices function as voltage variable capacitors.

SEE OR SEARCH CLASS

257, Active Solid-State Devices (e.g., Transistors, Solid-State Diodes), for devices that may contain a capacitor.

361, Electricity: Electrical Systems and Devices, for passive-state devices, such as capacitors.