Reciprocating valves

Reciprocating valves · 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 codeF04B53/125
Official title{Reciprocating valves}
Display labelReciprocating valves
Total patents35

Filing trend

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

Filing activity over the last five years is stable.

Patents filed per year
YearPatents
20152
20163
20171
20184
20192
20202
20216
20222
20234
20244
20255

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 F04B53/125?
CPC F04B53/125 is the Cooperative Patent Classification code for “Reciprocating valves.”
How many patents are filed under CPC F04B53/125 (Reciprocating valves)?
Our database includes 35 publications tagged with this CPC code.
Is patent activity under CPC F04B53/125 growing?
Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).