Arrangements providing for calling or supervisory signals

Arrangements providing for calling or supervisory signals · 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 codeH04J3/12
Official titleArrangements providing for calling or supervisory signals
Display labelArrangements providing for calling or supervisory signals
Total patents211

Filing trend

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

Filing activity over the last five years is rapidly growing.

Patents filed per year
YearPatents
201522
201619
201726
201820
20196
202011
20215
202222
202326
202419
202531
20264

Representative patents

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

Frequently asked questions

Answers are generated from the same data shown on this page.

What is CPC H04J3/12?
CPC H04J3/12 is the Cooperative Patent Classification code for “Arrangements providing for calling or supervisory signals.”
How many patents are filed under CPC H04J3/12 (Arrangements providing for calling or supervisory signals)?
Our database includes 211 publications tagged with this CPC code.
Is patent activity under CPC H04J3/12 growing?
Publication counts under this code: 19 in 2024 vs 31 in 2025 (latest complete years).