Agitation, e.g. air introduction

Agitation, e.g. air introduction · Cooperative Patent Classification (CPC)

Chemical and metallurgical processes, compounds, and materials.

Related technology areas

Mapped technology topics for this CPC code.

CPC classification statistics
MetricValue
CPC codeC23C18/1669
Official title{Agitation, e.g. air introduction}
Display labelAgitation, e.g. air introduction
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
20155
20163
20179
20182
20193
20205
20215
20227
20231
20243
20256

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 C23C18/1669?
CPC C23C18/1669 is the Cooperative Patent Classification code for “Agitation, e.g. air introduction.”
How many patents are filed under CPC C23C18/1669 (Agitation, e.g. air introduction)?
Our database includes 49 publications tagged with this CPC code.
Is patent activity under CPC C23C18/1669 growing?
Publication counts under this code: 3 in 2024 vs 6 in 2025 (latest complete years).