of connections between pistons and piston rods

of connections between pistons and piston rods · 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 codeF16F9/3228
Official title{of connections between pistons and piston rods}
Display labelof connections between pistons and piston rods
Total patents76

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
20153
20163
20173
20186
201912
20206
202110
20227
20238
202410
20257
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 F16F9/3228?
CPC F16F9/3228 is the Cooperative Patent Classification code for “of connections between pistons and piston rods.”
How many patents are filed under CPC F16F9/3228 (of connections between pistons and piston rods)?
Our database includes 76 publications tagged with this CPC code.
Is patent activity under CPC F16F9/3228 growing?
Publication counts under this code: 10 in 2024 vs 7 in 2025 (latest complete years).