Main valve and main cylinder

Main valve and main cylinder · 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 codeB25C1/042
Official title{Main valve and main cylinder}
Display labelMain valve and main cylinder
Total patents49

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
20151
20175
20197
20203
20216
20225
20238
20245
20255
20264

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 B25C1/042?
CPC B25C1/042 is the Cooperative Patent Classification code for “Main valve and main cylinder.”
How many patents are filed under CPC B25C1/042 (Main valve and main cylinder)?
Our database includes 49 publications tagged with this CPC code.
Is patent activity under CPC B25C1/042 growing?
Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).