Automatic routine testing {; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor}

Automatic routine testing {; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor} · 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 codeH04M3/28
Official titleAutomatic routine testing {; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor}
Display labelAutomatic routine testing {; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor}
Total patents145

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
201516
201624
201716
201816
201919
202015
20219
202213
202311
20243
20252
20261

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 H04M3/28?
CPC H04M3/28 is the Cooperative Patent Classification code for “Automatic routine testing {; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor}.”
How many patents are filed under CPC H04M3/28 (Automatic routine testing {; Fault testing; Installation testing; Test methods, test equipment or test arrangements therefor})?
Our database includes 145 publications tagged with this CPC code.
Is patent activity under CPC H04M3/28 growing?
Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).