What is CPC H02H3/338?

CPC H02H3/338 is the Cooperative Patent Classification code for “also responsive to wiring error, e.g. loss of neutral, break.”

How many patents are filed under CPC H02H3/338 (also responsive to wiring error, e.g. loss of neutral, break)?

Our database includes 56 publications tagged with this CPC code.

Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).

also responsive to wiring error, e.g. loss of neutral, break · Cooperative Patent Classification (CPC)

Electric circuits, power, telecommunications, and semiconductors.

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	H02H3/338
Official title	{also responsive to wiring error, e.g. loss of neutral, break}
Display label	also responsive to wiring error, e.g. loss of neutral, break
Total patents	56

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

Filing activity over the last five years is declining.

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

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

What is CPC H02H3/338?: CPC H02H3/338 is the Cooperative Patent Classification code for “also responsive to wiring error, e.g. loss of neutral, break.”
How many patents are filed under CPC H02H3/338 (also responsive to wiring error, e.g. loss of neutral, break)?: Our database includes 56 publications tagged with this CPC code.
Is patent activity under CPC H02H3/338 growing?: Publication counts under this code: 5 in 2024 vs 1 in 2025 (latest complete years).