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using a travelling-wave tube

using a travelling-wave tube · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeH03B9/08
Official titleusing a travelling-wave tube
Display labelusing a travelling-wave tube
Total patents7

Filing trend

Year-over-year patent counts classified under this CPC code.

Filing activity over the last five years is rapidly declining.

Patents filed per year
YearPatents
20153
20171
20181
20241
20251

Representative patents

Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.