Valves, taps or stop-cocks

Valves, taps or stop-cocks · Cooperative Patent Classification (CPC)

Separating, mixing, shaping, printing, and transporting materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeB01L3/567
Official title{Valves, taps or stop-cocks}
Display labelValves, taps or stop-cocks
Total patents201

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
201510
201622
201718
201811
201932
202015
202127
202222
202313
202414
202511
20266

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 B01L3/567?
CPC B01L3/567 is the Cooperative Patent Classification code for “Valves, taps or stop-cocks.”
How many patents are filed under CPC B01L3/567 (Valves, taps or stop-cocks)?
Our database includes 201 publications tagged with this CPC code.
Is patent activity under CPC B01L3/567 growing?
Publication counts under this code: 14 in 2024 vs 11 in 2025 (latest complete years).