Generation of oscillations, directly or by frequency-changing, by circuits employing active elements

Official title: GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS (generators adapted for electrophonic musical instruments G10H; masers or lasers H01S; generation of oscillations in plasma H05H)

H03B (Generation of oscillations, directly or by frequency-changing, by circuits employing active elements) appears on 8,089 US grants and 5,965 published applications in this corpus.