using modulated, pulsed, or reversing current

using modulated, pulsed, or reversing current · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC25D13/18
Official titleusing modulated, pulsed, or reversing current
Display labelusing modulated, pulsed, or reversing current
Total patents68

Filing trend

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

Filing activity over the last five years is declining.

Patents filed per year
YearPatents
20159
201610
20172
20188
20197
20203
20217
20226
20232
20248
20255
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 C25D13/18?
CPC C25D13/18 is the Cooperative Patent Classification code for “using modulated, pulsed, or reversing current.”
How many patents are filed under CPC C25D13/18 (using modulated, pulsed, or reversing current)?
Our database includes 68 publications tagged with this CPC code.
Is patent activity under CPC C25D13/18 growing?
Publication counts under this code: 8 in 2024 vs 5 in 2025 (latest complete years).