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Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code (teaching apparatus therefor G09B; telegraph tapping keys H01H21/86)

Apparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code (teaching apparatus therefor G09B; telegraph tapping keys H01H21/86) · 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 codeH04L15/00
Official titleApparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code (teaching apparatus therefor G09B; telegraph tapping keys H01H21/86)
Display labelApparatus or local circuits for transmitting or receiving dot-and-dash codes, e.g. Morse code (teaching apparatus therefor G09B; telegraph tapping keys H01H21/86)
Total patents9

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20161
20171
20181
20201
20213
20232

Representative patents

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