Needling machines

Needling machines · Cooperative Patent Classification (CPC)

Textile and paper production, treatment, and products.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeD04H18/00
Official titleNeedling machines
Display labelNeedling machines
Total patents25

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
20164
20174
20185
20194
20211
20243
20253
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 D04H18/00?
CPC D04H18/00 is the Cooperative Patent Classification code for “Needling machines.”
How many patents are filed under CPC D04H18/00 (Needling machines)?
Our database includes 25 publications tagged with this CPC code.
Is patent activity under CPC D04H18/00 growing?
Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).