What is CPC B04C3/06?

CPC B04C3/06 is the Cooperative Patent Classification code for “Construction of inlets or outlets to the vortex chamber.”

How many patents are filed under CPC B04C3/06 (Construction of inlets or outlets to the vortex chamber)?

Our database includes 321 publications tagged with this CPC code.

Publication counts under this code: 26 in 2024 vs 33 in 2025 (latest complete years).

Construction of inlets or outlets to the vortex chamber · Cooperative Patent Classification (CPC)

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

Mapped technology topics for this CPC code.

CPC classification statistics
Metric	Value
CPC code	B04C3/06
Official title	Construction of inlets or outlets to the vortex chamber
Display label	Construction of inlets or outlets to the vortex chamber
Total patents	321

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

Filing activity over the last five years is 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 B04C3/06?: CPC B04C3/06 is the Cooperative Patent Classification code for “Construction of inlets or outlets to the vortex chamber.”
How many patents are filed under CPC B04C3/06 (Construction of inlets or outlets to the vortex chamber)?: Our database includes 321 publications tagged with this CPC code.
Is patent activity under CPC B04C3/06 growing?: Publication counts under this code: 26 in 2024 vs 33 in 2025 (latest complete years).