using aqueous solutions

using aqueous solutions · 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 codeC23C22/05
Official titleusing aqueous solutions
Display labelusing aqueous solutions
Total patents185

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
201512
201612
201720
201821
201918
202033
202111
202221
202310
202417
202510

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 C23C22/05?
CPC C23C22/05 is the Cooperative Patent Classification code for “using aqueous solutions.”
How many patents are filed under CPC C23C22/05 (using aqueous solutions)?
Our database includes 185 publications tagged with this CPC code.
Is patent activity under CPC C23C22/05 growing?
Publication counts under this code: 17 in 2024 vs 10 in 2025 (latest complete years).