with a spiral-like appearance

with a spiral-like appearance · Cooperative Patent Classification (CPC)

Engines, pumps, lighting, heating, and mechanical systems.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeF16F1/326
Official title{with a spiral-like appearance}
Display labelwith a spiral-like appearance
Total patents26

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
20161
20181
20194
20214
20224
20233
20247
20251
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 F16F1/326?
CPC F16F1/326 is the Cooperative Patent Classification code for “with a spiral-like appearance.”
How many patents are filed under CPC F16F1/326 (with a spiral-like appearance)?
Our database includes 26 publications tagged with this CPC code.
Is patent activity under CPC F16F1/326 growing?
Publication counts under this code: 7 in 2024 vs 1 in 2025 (latest complete years).