What is CPC F16F9/0227?

CPC F16F9/0227 is the Cooperative Patent Classification code for “characterised by the piston construction.”

How many patents are filed under CPC F16F9/0227 (characterised by the piston construction)?

Our database includes 61 publications tagged with this CPC code.

Publication counts under this code: 8 in 2024 vs 10 in 2025 (latest complete years).

characterised by the piston construction · Cooperative Patent Classification (CPC)

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

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	F16F9/0227
Official title	{characterised by the piston construction}
Display label	characterised by the piston construction
Total patents	61

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

Filing activity over the last five years is rapidly growing.

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 F16F9/0227?: CPC F16F9/0227 is the Cooperative Patent Classification code for “characterised by the piston construction.”
How many patents are filed under CPC F16F9/0227 (characterised by the piston construction)?: Our database includes 61 publications tagged with this CPC code.
Is patent activity under CPC F16F9/0227 growing?: Publication counts under this code: 8 in 2024 vs 10 in 2025 (latest complete years).