the piston being spring operated

the piston being spring operated · 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 codeF41B11/642
Official titlethe piston being spring operated
Display labelthe piston being spring operated
Total patents35

Filing trend

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

Filing activity over the last five years is growing.

Patents filed per year
YearPatents
20154
20163
20174
20204
20213
20225
20234
20244
20254

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 F41B11/642?
CPC F41B11/642 is the Cooperative Patent Classification code for “the piston being spring operated.”
How many patents are filed under CPC F41B11/642 (the piston being spring operated)?
Our database includes 35 publications tagged with this CPC code.
Is patent activity under CPC F41B11/642 growing?
Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).