US PATENT SUBCLASS 205 / 108
.~.~ Nonreversing pulsed current or voltage

Current as of: June, 1999
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205 /   HD   ELECTROLYSIS: PROCESSES, COMPOSITIONS USED THEREIN, AND METHODS OF PREPARING THE COMPOSITIONS

80  DF  ELECTROLYTIC COATING (PROCESS, COMPOSITION AND METHOD OF PREPARING COMPOSITION) {42}
106  DF  .~ Forming nonmetal coating using specified waveform other than pure DC or 60 Hz sine wave AC (e.g., anodic oxide coating, etc.) {2}
108.~.~ Nonreversing pulsed current or voltage

DEFINITION

Classification: 205/108

Nonreversing pulsed current or voltage:

(under subclass 106) Subject matter wherein the specified waveform repetitively changes from one current or voltage level to another (e.g., pulses of current separated by periods of no current flow, etc.) and wherein the pulses contain no reversed pulses.